Cover Page
Cover Page - USD ($) | 12 Months Ended | ||
Dec. 31, 2020 | Mar. 12, 2021 | Jun. 30, 2020 | |
Cover [Abstract] | |||
Document Type | 10-K | ||
Document Annual Report | true | ||
Document Period End Date | Dec. 31, 2020 | ||
Current Fiscal Year End Date | --12-31 | ||
Document Transition Report | false | ||
Entity File Number | 001-38501 | ||
Entity Registrant Name | AXCELLA HEALTH INC. | ||
Entity Incorporation, State or Country Code | DE | ||
Entity Tax Identification Number | 26-3321056 | ||
Entity Address, Address Line One | 840 Memorial Drive | ||
Entity Address, City or Town | Cambridge | ||
Entity Address, State or Province | MA | ||
Entity Address, Postal Zip Code | 02139 | ||
City Area Code | 857 | ||
Local Phone Number | 320-2200 | ||
Title of 12(b) Security | Common Stock, $0.001 par value per share | ||
Trading Symbol | AXLA | ||
Security Exchange Name | NASDAQ | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Non-accelerated Filer | ||
Entity Small Business | true | ||
Entity Emerging Growth Company | true | ||
Entity Ex Transition Period | false | ||
ICFR Auditor Attestation Flag | false | ||
Entity Shell Company | false | ||
Entity Public Float | $ 106,565,992 | ||
Entity Common Stock, Shares Outstanding (in shares) | 37,690,435 | ||
Documents Incorporated by Reference | Part III of this Annual Report on Form 10-K incorporates by reference certain information from the registrant’s definitive proxy statement for its 2021 annual meeting of shareholders, or the Proxy Statement, which the registrant intends to file pursuant to Regulation 14A with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year end of December 31, 2020. Except with respect to information specifically incorporated by reference in this Form 10-K, the Proxy Statement is not deemed to be filed as part of this Form 10-K. | ||
Document Fiscal Year Focus | 2020 | ||
Document Fiscal Period Focus | FY | ||
Amendment Flag | false | ||
Entity Central Index Key | 0001633070 |
Consolidated Balance Sheets
Consolidated Balance Sheets - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Current assets: | ||
Cash and cash equivalents | $ 71,590 | $ 92,053 |
Marketable securities | 35,739 | 0 |
Prepaid expenses and other current assets | 1,692 | 1,487 |
Total current assets | 109,021 | 93,540 |
Property and equipment, net | 360 | 608 |
Other assets | 211 | 211 |
Total assets | 109,592 | 94,359 |
Current liabilities: | ||
Accounts payable | 2,290 | 1,998 |
Accrued expenses and other current liabilities | 5,494 | 6,358 |
Total current liabilities | 7,784 | 8,356 |
Long-term debt, net of discount | 25,222 | 24,897 |
Other liabilities | 1,205 | 882 |
Total liabilities | 34,211 | 34,135 |
Commitments and contingencies (Note 11) | 0 | 0 |
Stockholders' equity: | ||
Common stock, $0.001 par value; 150,000,000 shares authorized, 38,022,273 and 23,607,797 shares issued and 37,603,292 and 23,188,816 shares outstanding at December 31, 2020 and 2019, respectively | 38 | 24 |
Additional paid-in capital | 347,990 | 276,286 |
Treasury stock, 418,981 shares at cost | 0 | 0 |
Accumulated other comprehensive loss | (34) | 0 |
Accumulated deficit | (272,613) | (216,086) |
Total stockholders' equity | 75,381 | 60,224 |
Total liabilities and stockholders' equity | $ 109,592 | $ 94,359 |
Consolidated Balance Sheet (Par
Consolidated Balance Sheet (Parenthetical) - $ / shares | Dec. 31, 2020 | Dec. 31, 2019 |
Statement of Financial Position [Abstract] | ||
Common stock, par value (USD per share) | $ 0.001 | $ 0.001 |
Common stock authorized (in shares) | 150,000,000 | 150,000,000 |
Common stock issued (in shares) | 38,022,273 | 23,607,797 |
Common stock outstanding (in shares) | 37,603,292 | 23,188,816 |
Treasury stock at cost (in shares) | 418,981 | 418,981 |
Consolidated Statements of Oper
Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Operating expenses: | ||
Research and development | $ 37,039 | $ 41,658 |
General and administrative | 16,797 | 15,781 |
Total operating expenses | 53,836 | 57,439 |
Loss from operations | (53,836) | (57,439) |
Interest Income, Nonoperating | 306 | 1,814 |
Other income (expense): | ||
Interest expense | (3,007) | (3,395) |
Total other income (expense), net | 10 | (17) |
Nonoperating Income (Expense) | (2,691) | (1,598) |
Net loss | $ (56,527) | $ (59,037) |
Net loss per share, basic and diluted (USD per share) | $ (1.78) | $ (3.55) |
Weighted average common shares outstanding, basic and diluted (in shares) | 31,747,676 | 16,624,941 |
Comprehensive loss: | ||
Net loss | $ (56,527) | $ (59,037) |
Other comprehensive income (loss): | ||
Unrealized losses on marketable securities | (34) | 0 |
Comprehensive loss | $ (56,561) | $ (59,037) |
Consolidated Statements of Cash
Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Cash flows from operating activities: | ||
Net loss | $ (56,527) | $ (59,037) |
Adjustment to reconcile net loss to net cash used in operating activities: | ||
Depreciation and amortization | 419 | 662 |
Stock-based compensation | 6,287 | 5,824 |
Change in fair value of preferred stock warrant liability | 0 | 51 |
Non-cash interest expense | 580 | 557 |
Other non-cash items | 128 | (18) |
Changes in operating assets and liabilities: | ||
Prepaid expenses and other current assets | (205) | (652) |
Other long-term assets | 0 | 5 |
Accounts payable | 311 | 366 |
Accrued expenses and other current liabilities | (764) | 1,280 |
Net cash used in operating activities | (49,771) | (50,962) |
Cash flows from investing activities: | ||
Purchases of property and equipment | (239) | (136) |
Proceeds from the sale of property and equipment | 40 | 19 |
Purchases of marketable securities | (35,920) | 0 |
Net cash used in investing activities | (36,119) | (117) |
Cash flows from financing activities: | ||
Proceeds from issuance of common stock, net of issuance costs | 65,322 | 64,546 |
Payment of debt issuance costs | (39) | 0 |
Payment of success fee obligation | 0 | (1,220) |
Proceeds from exercise of common stock options and ESPP | 144 | 340 |
Net cash provided by financing activities | 65,427 | 63,666 |
Net (decrease) increase in cash and cash equivalents | (20,463) | 12,587 |
Cash and cash equivalents, beginning of year | 92,053 | 79,466 |
Cash and cash equivalents, end of year | 71,590 | 92,053 |
Supplemental cash flow information: | ||
Cash paid for interest | 2,420 | 2,838 |
Supplemental disclosure of non-cash investing and financing activities: | ||
Reclassification of warrants to additional paid-in capital | 0 | 476 |
Conversion of preferred stock to common stock upon closing of the initial public offering | 0 | 197,888 |
Accretion of preferred stock to redemption value | 0 | 46 |
Purchases of property and equipment included in accounts payable | 13 | 59 |
Public offering costs incurred but unpaid at period end | $ 35 | $ 0 |
Consolidated Statements of Stoc
Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands | Total | Common stock | Additional paid-in capital | Accumulated other comprehensive income (loss) | Accumulated deficit |
Beginning balance (in shares) at Dec. 31, 2018 | 5,193,915 | ||||
Beginning balance at Dec. 31, 2018 | $ (149,753) | $ 6 | $ 7,290 | $ 0 | $ (157,049) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Exercise of common stock options (in shares) | 155,043 | ||||
Exercise of common stock options | 340 | 340 | |||
Accretion of preferred stock to redemption value | (46) | (46) | |||
Conversion of preferred stock to common stock upon closing of the initial public offering (in shares) | 14,641,997 | ||||
Conversion of preferred stock to common stock upon closing of the initial public offering | 197,888 | $ 15 | 197,873 | ||
Issuance of common stock, net (in shares) | 3,571,428 | ||||
Issuance of common stock, net of issuance costs | 64,532 | $ 3 | 64,529 | ||
Reclassification of warrants to additional paid-in capital | 476 | 476 | |||
Exercise of common stock warrant (in shares) | 45,414 | ||||
Exercise of common stock warrant | 0 | ||||
Stock-based compensation | 5,824 | 5,824 | |||
Net loss | (59,037) | (59,037) | |||
Ending balance (in shares) at Dec. 31, 2019 | 23,607,797 | ||||
Ending balance at Dec. 31, 2019 | $ 60,224 | $ 24 | 276,286 | 0 | (216,086) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Exercise of common stock options (in shares) | 4,071 | 3,166 | |||
Exercise of common stock options | $ 0 | ||||
Issuance of common stock, net (in shares) | 14,371,267 | ||||
Issuance of common stock, net of issuance costs | 65,287 | $ 14 | 65,273 | ||
Reclassification of warrants to additional paid-in capital | 0 | ||||
Issuance of common stock related to ESPP (in shares) | 40,043 | ||||
Issuance of common stock related to ESPP | 144 | 144 | |||
Stock-based compensation | 6,287 | 6,287 | |||
Unrealized loss on marketable securities | (34) | (34) | |||
Net loss | (56,527) | (56,527) | |||
Ending balance (in shares) at Dec. 31, 2020 | 38,022,273 | ||||
Ending balance at Dec. 31, 2020 | $ 75,381 | $ 38 | $ 347,990 | $ (34) | $ (272,613) |
Consolidated Statements of Rede
Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Statement of Stockholders' Equity [Abstract] | ||
Stock issuance costs | $ 4,599 | $ 6,896 |
NATURE OF BUSINESS
NATURE OF BUSINESS | 12 Months Ended |
Dec. 31, 2020 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
NATURE OF BUSINESS | NATURE OF BUSINESS Axcella Health Inc. and subsidiaries ("Axcella," the "Company" or "we") is a biotechnology company that was incorporated in Delaware on August 27, 2008 and has a principal place of business in Cambridge, Massachusetts. The Company is focused on pioneering a new approach to treat complex diseases and improve health using endogenous metabolic modulator, or EMM, compositions. The Company's product candidates are comprised of multiple EMMs that are engineered in distinct combinations and ratios with the goal of simultaneously impacting multiple biological pathways. The Company is subject to risks and uncertainties common to early-stage companies in the biotechnology industry, including, but not limited to, successful development of technology, obtaining additional funding, protection of proprietary technology, compliance with government regulations, risks of failure of preclinical studies, Clinical Studies and Clinical Trials, the need to obtain marketing approval for its product candidates, if required, and successfully market products, fluctuations in operating results, economic pressure impacting therapeutic pricing, dependence on key personnel, risks associated with changes in technologies, development by competitors of technological innovations and the ability to scale manufacturing to large scale production. Product candidates currently under development will require significant additional research and development efforts, including preclinical and clinical testing and any necessary regulatory approval prior to commercialization. These efforts require significant amounts of additional capital, adequate personnel and infrastructure and extensive compliance-reporting capabilities. Even if development efforts are successful, it is uncertain when, if ever, the Company will realize significant revenue from product sales. The accompanying consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities and commitments in the ordinary course of business. The Company has historically funded its operations with proceeds from sales of preferred and common stock and borrowings under a loan and security agreement. As of December 31, 2020, the Company had an accumulated deficit of $272.6 million. The Company expects to continue to generate operating losses for the foreseeable future. The Company believes the cash, cash equivalents, and marketable securities on hand as of December 31, 2020 of $107.3 million will be sufficient to fund its operations for at least the next 12 months following the issuance date of these consolidated financial statements. |
SUMMARY OF SIGNIFICANT ACCOUNTI
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | 12 Months Ended |
Dec. 31, 2020 | |
Accounting Policies [Abstract] | |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). Any reference in these notes to applicable guidance is meant to refer to the authoritative United States generally accepted accounting principles as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Update (“ASU”) of the Financial Accounting Standards Board (“FASB”). Principles of Consolidation The accompanying consolidated financial statements include the accounts of Axcella Health Inc. and its wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Segment Information Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the CEO, who is the chief operating decision maker, in making decisions on how to allocate resources and assess performance. The Company operates in one reportable business segment. Use of Estimates The preparation of the consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of expenses during the reporting period. The Company bases its estimates on historical experience, known trends and other market-specific or relevant factors that it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates as there are changes in circumstances, facts and experience. Actual results may differ from those estimates or assumptions. Cash and Cash Equivalents Cash and cash equivalents include cash held in banks and amounts held in interest-bearing money market accounts, Cash equivalents are carried at cost, which approximates their fair market value. The Company considers all highly liquid investments with a remaining maturity when purchased of three months or less to also be cash equivalents. Marketable Securities The Company’s marketable securities, which consisted of corporate debt obligations as of December 31, 2020, are classified as available-for-sale and are reported at fair value. Unrealized gains and losses on available-for-sale securities are reported as a component of accumulated other comprehensive income (loss) in stockholders’ equity. Realized gains and losses and declines in value determined to be other than temporary are based on the specific identification method and are included as a component of other income (expense), net in the consolidated statements of operations and comprehensive loss. The Company evaluates its marketable securities with unrealized losses for other-than-temporary impairment. When assessing marketable securities for other-than-temporary declines in value, the Company considers such factors as, among other things, how significant the decline in value is as a percentage of the original cost, how long the market value of the investment has been less than its original cost, the Company’s ability and intent to retain the investment for a period of time sufficient to allow for any anticipated recovery in fair value and market conditions in general. If any adjustment to fair value reflects a decline in the value of the investment that the Company considers to be “other than temporary,” the Company reduces the investment to fair value through a charge to the statement of operations and comprehensive loss. No such adjustments were necessary during the periods presented. Concentrations of Credit Risk The Company has no off-balance sheet risk, such as foreign exchange contracts, option contracts, or other foreign hedging arrangements. Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash, cash equivalents, and marketable securities. The Company maintains its cash and cash equivalent balances and marketable securities with financial institutions that management believes are creditworthy. The Company’s cash equivalents and marketable securities as of December 31, 2020 consisted of corporate obligations, bank deposits, and money market funds that invest in U.S. treasury securities. The Company's investment policy includes guidelines on the quality of the institutions and financial instruments and defines the allowable investments that the Company believes minimizes the exposure to concentrations of credit risk. The Company has not experienced any credit losses and does not believe that it is subject to significant credit risk. Fair Value Measurements Certain assets and liabilities of the Company are carried at fair value. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Financial assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy, of which the first two are considered observable and the last is considered unobservable: • Level 1 — Quoted prices in active markets for identical assets or liabilities. • Level 2 — Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data. • Level 3 — Unobservable inputs that are supported by little or no market activity that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques. The Company’s cash equivalents and marketable securities are carried at fair value, determined according to the fair value hierarchy described above. The carrying values of the Company’s accounts payable and accrued expenses approximate their fair values due to the short-term nature of these liabilities. The carrying value of the long term debt approximates fair value as evidenced by the recent amendment to the Company's debt facility. Property and Equipment Property and equipment are recorded at cost. Depreciation and amortization is calculated using the straight-line method over the following estimated useful lives of the assets: Estimated useful life Computer equipment and software 3 years Office equipment 3 - 5 years Laboratory equipment 5 years Furniture and fixtures 5 years Leasehold improvements Shorter of the asset’s estimated Upon disposal, retirement or sale, the cost of assets disposed of and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is included in the results of operations. Expenditures for repairs and maintenance that do not improve or extend the lives of the respective assets are charged to expense as incurred. Impairment of Long-Lived Assets Long-lived assets consist of property and equipment. The Company reviews long-lived assets when events or changes in circumstances indicate the carrying value of the assets may not be recoverable. Recoverability is measured by comparison of the book values of the assets to future net undiscounted cash flows that the assets are expected to generate. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the book value of the assets exceed their fair value, which is measured based on the projected discounted future net cash flows arising from the assets. There were no significant impairments of long‑lived assets for the years ended December 31, 2020 or 2019. Research and Development Costs Research and development costs are expensed as incurred. Research and development expenses consist of costs incurred in performing research and development activities, including salaries, stock-based compensation and benefits, facilities costs, depreciation, third-party license fees, and external costs of outside vendors engaged to conduct preclinical development activities, Clinical Studies and Clinical Trials as well as to manufacture research and development materials. Non-refundable prepayments for goods or services that will be used or rendered for future research and development activities are deferred and are recognized as an expense as the goods are consumed or the related services are performed. The Company has entered into various research and development related contracts. The Company records accrued liabilities for research costs incurred but not paid. When measuring the accrued liabilities, the Company analyzes progress of the Clinical Studies or Clinical Trials, including the phase or completion of events, invoices received and contracted costs. Significant judgments and estimates are made in determining the accrued balances at the end of any reporting period. Actual results could differ from the Company’s estimates. The Company’s historical accrual estimates have not been materially different from the actual costs. Stock-Based Compensation The Company measures the estimated fair value of the stock-based award on the date of grant and recognizes compensation expense for those awards over the requisite service period, which is generally the vesting period of the award. For stock-based awards with service-based vesting conditions, the Company records the expense for these awards using the straight-line method. For stock options with performance-based vesting conditions, the Company records the expense for these awards over the requisite service period using an accelerated attribution method to the extent the achievement of the performance condition is probable. The Company accounts for forfeitures as they occur. The Company classifies stock-based compensation expense in the consolidated statements of operations in the same manner in which the award recipient’s cash compensation costs are classified. Income Taxes Deferred tax assets and liabilities are recognized for the expected future tax consequences of events that have been included in the consolidated financial statements or tax returns. Under this method, deferred tax assets and liabilities are determined based on the difference between the consolidated financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. A valuation allowance is provided to reduce the deferred tax asset to an amount, which, more likely than not, will be realized. The Company recognizes the tax benefit from any uncertain tax positions only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the consolidated financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. Interest and penalties associated with uncertain tax positions are recorded as a component of income tax expense. As of December 31, 2020 and 2019, the Company has not identified any uncertain tax positions for which reserves would be required. Comprehensive Loss Comprehensive loss includes net loss as well as other changes in stockholders’ equity (deficit) that result from transactions and economic events other than those with stockholders. For the year ended December 31, 2020, the Company’s only element of other comprehensive loss was unrealized gains (losses) on marketable securities. Net Loss Per Share Basic net loss per share attributable to common stockholders is calculated by dividing net loss by the weighted average shares outstanding during the period. Diluted net income (loss) per share is calculated by adjusting weighted average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period. All common stock equivalents have been excluded from the calculation of diluted net loss per share, as their effect would be anti-dilutive for all periods presented. Recently Adopted Accounting Pronouncements Accounting Pronouncements Issued and Not Adopted In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”), as amended by various subsequently issued ASUs. The standard requires lessees to recognize an operating lease with a term greater than one year on their balance sheets as a right-of-use asset and corresponding lease liability, measured at the present value of the lease payments. The new standard will become effective for the Company on January 1, 2022. The Company expects to apply the modified retrospective approach as of the date of adoption such that prior periods will not be restated. The Company is evaluating the effect that adoption of the standard is expected to have on the Company’s consolidated financial statements and related disclosures and will recognize a lease obligation and right of use asset for its existing operating leases with a lease term greater than one year upon adoption. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326). The new standard adjusts the accounting for assets held at amortized costs basis, including marketable securities accounted for as available-for-sale. The standard eliminates the probable initial recognition threshold and requires an entity to reflect its current estimate of all expected credit losses. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial assets to present the net amount expected to be collected. The Company is required to adopt this standard effective January 1, 2023 and the Company is evaluating the impact the guidance will have on its consolidated financial statements. |
FAIR VALUE MEASUREMENTS
FAIR VALUE MEASUREMENTS | 12 Months Ended |
Dec. 31, 2020 | |
Fair Value Disclosures [Abstract] | |
FAIR VALUE MEASUREMENTS | FAIR VALUE MEASUREMENTS The following tables present the Company’s assets that are measured at fair value on a recurring basis and indicate the level within the fair value hierarchy (in thousands): Fair value measurements at December 31, 2020 using: Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 69,118 $ — $ — $ 69,118 Marketable securities: Corporate obligations — 35,739 — 35,739 Total $ 69,118 $ 35,739 $ — $ 104,857 Fair value measurements at December 31, 2019 using: Level 1 Level 2 Level 3 Total Assets: Cash equivalents $ 91,803 $ — $ — $ 91,803 Total $ 91,803 $ — $ — $ 91,803 |
CASH, CASH EQUIVALENTS, AND MAR
CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES | 12 Months Ended |
Dec. 31, 2020 | |
Cash and Cash Equivalents [Abstract] | |
CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES | CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES As of December 31, 2020 and 2019, cash, cash equivalents, and marketable securities by security type consisted of the following (in thousands): December 31, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Cash and cash equivalents $ 71,590 $ — $ — $ 71,590 Corporate obligations 35,773 1 (35) 35,739 Total $ 107,363 $ 1 $ (35) $ 107,329 December 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Cash and cash equivalents $ 92,053 $ — $ — $ 92,053 Corporate obligations — — — — Total $ 92,053 $ — $ — $ 92,053 The fair values of cash equivalents and marketable securities by contractual maturity were as follows (in thousands): December 31, Contractual maturities 2020 2019 Mature in one year or less $ 86,338 $ 91,803 Mature in two years or less 18,519 — Total $ 104,857 $ 91,803 Marketable securities with maturities beyond one year are classified as short-term marketable securities in the consolidated balance sheets due to their highly liquid nature and because they represent the Company’s investments that are available for current operations. All cash equivalents mature within three months or less. Operating cash of $2.5 million and $0.3 million is excluded from the above table as of December 31, 2020 and 2019, respectively. |
PROPERTY AND EQUIPMENT
PROPERTY AND EQUIPMENT | 12 Months Ended |
Dec. 31, 2020 | |
Property, Plant and Equipment [Abstract] | |
PROPERTY AND EQUIPMENT | PROPERTY AND EQUIPMENT Property and equipment consist of the following (in thousands): December 31, 2020 2019 Laboratory equipment $ 3,022 $ 3,511 Leasehold improvements 564 597 Office and computer equipment 111 111 Furniture and fixtures 122 122 Property and equipment, gross 3,819 4,341 Less: accumulated depreciation and amortization (3,459) (3,733) Property and equipment, net $ 360 $ 608 Depreciation and amortization expense for the years ended December 31, 2020 and 2019 was $0.4 million and $0.7 million, respectively. The Company disposed of lab equipment during the year ended December 31, 2020 totaling $0.7 million. |
ACCRUED EXPENSES AND OTHER CURR
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES | 12 Months Ended |
Dec. 31, 2020 | |
Payables and Accruals [Abstract] | |
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES | ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accrued expenses and other current liabilities consisted of the following (in thousands): December 31, 2020 2019 Accrued employee compensation and benefits $ 2,998 $ 3,109 Accrued external research and development expenses 1,870 1,799 Accrued professional fees and other 626 1,450 Total accrued expenses and other current liabilities $ 5,494 $ 6,358 |
DEBT FINANCING
DEBT FINANCING | 12 Months Ended |
Dec. 31, 2020 | |
Debt Disclosure [Abstract] | |
DEBT FINANCING | DEBT FINANCING Long-term debt consisted of the following (in thousands): December 31, 2020 2019 Principal amount of long-term debt $ 26,000 $ 26,000 Debt discount (308) (456) Deferred financing fees (470) (647) Long-term debt, net of discount $ 25,222 $ 24,897 In January 2018, the Company entered into a Loan and Security Agreement. Under the Loan and Security Agreement, t he Company granted the lender a first priority security interest in all assets of the Company, excluding intellectual property and granted a negative pledge on such intellectual property. The interest rate is LIBOR plus 8.50% per annum. On August 28, 2020, the Loan and Security Agreement was further amended to, among other things; (i) extend the date on which repayment of principal commences until November 2021, (ii) provide for further extensions of the date on which repayment of principal commences to February 2022 and May 2022, provided that certain specified regulatory and clinical milestones are satisfied by the Company, (iii) increase the final payment fee from 5.35% to 6.35% and (iv) add a 0.2% floor to the LIBOR rate. The Company paid $39,000 to the lender for the amended agreement. The Company achieved two of the specified regulatory and clinical milestones and the date on which repayment of principal commences was extended to February 2022. The monthly principal payments of $2.2 million will be paid over a period of 12 months . The interest rate was 8.70% as of December 31, 2020 . Terminal Interest Fee The Company's debt facility includes a terminal interest fee obligation totaling $1.7 million, which is due with the final principal payment of the loan and has been modified from time to time as the facilities were amended. The Company is accruing the terminal fee obligation over the term of the facility. The carrying value of the terminal interest fee was $1.1 million and $0.9 million at December 31, 2020 and 2019, respectively, and is classified within other long-term liabilities. The scheduled principal maturity of the long term debt as of December 31, 2020 is as follows (in thousands): Year Ending December 31, 2021 $ — 2022 23,833 2023 2,167 $ 26,000 |
STOCKHOLDERS' EQUITY
STOCKHOLDERS' EQUITY | 12 Months Ended |
Dec. 31, 2020 | |
Equity [Abstract] | |
STOCKHOLDERS' EQUITY | STOCKHOLDERS' EQUITY Redeemable Convertible Preferred Stock Upon the closing of the IPO in 2019, all outstanding Preferred Stock converted into an aggregate of 14,641,997 shares of common stock. The holders of the Company’s preferred stock had certain voting, dividend, and redemption rights, as well as liquidation preferences and conversion privileges. All rights, preferences, and privileges associated with the preferred stock were terminated at the time of the Company’s IPO in conjunction with the conversion of all outstanding shares of preferred stock into shares of common stock. Common Stock In May 2019, the Company issued 3,571,428 common shares at a public offering price of $20.00 per share for net proceeds of $64.5 million, after deducting underwriting discounts and commissions and other offering expenses. Additionally, in May 2019, the Company restated its certificate of incorporation, which, among other things: (i) authorized 160,000,000 shares, consisting of (i) 150,000,000 shares of common stock, $0.001 par value per share, and (ii) 10,000,000 shares of undesignated preferred stock, $0.001 par value per share. On May 18, 2020, the Company completed a public offering pursuant to which the Company issued an aggregate of 12,650,000 shares of its common stock for net proceeds of approximately $55.9 million, after deducting the underwriting discounts, commissions, and other offering expenses. On June 5, 2020, the Company entered into a sales agreement with SVB Leerink LLC (“SVB Leerink”) pursuant to which the Company may offer and sell shares of its common stock having an aggregate offering price of up to $35.0 million from time to time through SVB Leerink, acting as its agent (the “ATM Offering”). During the year ended December 31, 2020, the Company sold an aggregate of 1,721,267 shares of its common stock under the ATM Offering for net cash proceeds of $9.3 million, after deducting commissions and expenses of $0.5 million. |
STOCK-BASED COMPENSATION
STOCK-BASED COMPENSATION | 12 Months Ended |
Dec. 31, 2020 | |
Share-based Payment Arrangement [Abstract] | |
STOCK-BASED COMPENSATION | STOCK-BASED COMPENSATION 2019 Stock Option and Incentive Plan The 2019 Stock Option and Incentive Plan (the "2019 Plan") was approved by the Company's board of directors on April 29, 2019. The 2019 Plan provides for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock units, restricted stock awards, unrestricted stock awards and cash-based awards to the Company's officers, employees, directors and consultants. Awards under the 2019 plan generally vest ratably over the vesting period (3-4 years) and have a maximum term of 10 years. The number of shares initially reserved for issuance under the 2019 Plan is 905,000, which was increased on January 1, 2020 and will be increased each January 1 thereafter by 4% of the number of shares of the Company's common stock outstanding on the immediately preceding December 31, or such lesser number of shares determined by the Company's board of directors or compensation committee of the board of directors. The number of options available for future grant under the 2019 Plan was 936,148 as of December 31, 2020. 2019 Employee Stock Purchase Plan The 2019 Employee Stock Purchase Plan (the "2019 ESPP") was approved by our board of directors on April 29, 2019. A total of 237,181 shares of common stock were initially reserved for issuance under this plan, which was cumulatively increased on January 1, 2020 and will be increased each January 1 thereafter by 1% of the number of shares of the Company's common stock outstanding on the immediately preceding December 31, or such lesser number of shares determined by the Company's board of directors or compensation committee of the board of directors. The number of shares available for future grant was 429,026 as of December 31, 2020. The Company recorded $0.1 million of stock-based compensation expense during the year ended December 31, 2020. No such expense was recorded during the year ended December 31, 2019 related to the 2019 ESPP. In connection with all share-based payment awards, total stock-based compensation expense recognized was as follows (in thousands): December 31, 2020 2019 Research and development $ 2,670 $ 2,461 General and administrative 3,617 3,363 Total stock-based compensation expense $ 6,287 $ 5,824 Fair Value of Stock Awards The fair value of each option issued was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions: Year Ending December 31, 2020 2019 Risk-free interest rate 1.01 % 2.09 % Expected option life (in years) 5.97 6.16 Expected dividend yield 0 % 0 % Expected volatility 79 % 71 % The following table summarizes the Company’s stock option activity for the year ended December 31, 2020: Options Weighted Weighted Intrinsic Outstanding as of January 1, 2020 5,176,944 $ 7.35 Granted 1,021,940 4.57 Exercised (4,071) 1.12 Cancelled (1,274,853) 8.91 Outstanding as of December 31, 2020 4,919,960 $ 6.37 7.04 $ 2,343 Exercisable as of December 31, 2020 3,015,220 $ 6.59 6.16 $ 1,459 Vested or expected to vest as of December 31, 2020 4,894,960 $ 6.36 7.00 $ 2,298 The intrinsic value of options exercised during the year ended December 31, 2020 was nominal. The intrinsic value of options exercised during the year ended December 31, 2019 was $0.4 million. The weighted-average grant date fair value of the options granted during the years ended December 31, 2020 and 2019, was $3.06 and $7.21 per share, respectively. As of December 31, 2020, there was $6.7 million of unrecognized compensation expense related to unvested stock options that is expected to be recognized over a weighted-average period of approximately 2.1 years. Restricted Stock Units The fair values of restricted stock units are based on the market value of the Company's common stock on the date of grant. The following table summarizes the Company's restricted stock unit activity for the year ended December 31, 2020: Number of Shares Weighted Average Grant Date Fair Value per Share Outstanding as of January 1, 2020 66,801 $ 3.40 Granted 401,166 4.05 Vested — — Forfeited (120,380) 3.72 Outstanding as of December 31, 2020 347,587 $ 4.04 |
INCOME TAXES
INCOME TAXES | 12 Months Ended |
Dec. 31, 2020 | |
Income Tax Disclosure [Abstract] | |
INCOME TAXES | INCOME TAXES There is no provision for income taxes because the Company has historically incurred operating losses and maintains a full valuation allowance against its deferred tax assets. A reconciliation of income taxes computed using the U.S. federal statutory rate to that reflected in operations as of December 31, 2020 and 2019 are as follows: December 31, 2020 2019 Tax at U.S. statutory rate 21.0 % 21.0 % State taxes, net of federal benefit 6.1 % 6.0 % Permanent differences (0.8) % (1.9) % Tax credits 3.0 % 4.1 % Other 0.3 % — % Change in valuation allowance (29.6) % (29.2) % Effective income tax rate 0.0 % 0.0 % Significant components of the Company’s deferred tax asset at December 31, 2020 and 2019 are as follows (in thousands): December 31, 2020 2019 Net operating loss carryforwards $ 65,911 $ 52,242 Research and development tax credit carryforwards 8,896 7,917 Start-up costs 28 35 Capitalized research and development costs 64 169 Depreciation 304 413 Accrued expenses 1,059 1,102 Stock-based compensation 3,253 1,087 Other items 1,175 971 Total deferred tax assets 80,690 63,936 Valuation allowance (80,690) (63,936) Net deferred tax asset $ — $ — As of December 31, 2020, the Company had federal and state net operating loss carryforwards of $242.5 million and $237.3 million, respectively, which may be used to offset future taxable income, if any. These amounts begin to expire in 2030. The federal net operating losses generated in 2018, 2019 and 2020 can be carried forward indefinitely. As of December 31, 2020, the Company had federal and state research and development tax credit carryforwards of $7.0 million and $2.5 million, respectively. These amounts expire at various dates through 2040. Due to the degree of uncertainty related to the ultimate use of the deferred tax assets, the Company has fully reserved these tax benefits, as the determination of the realization of the deferred tax benefits was not determined to be more likely than not. The valuation allowance increased in 2020 by $16.8 million, due to the increase in deferred tax assets by the same amount (primarily due to net operating loss carryforwards) and the Company’s recording of a full valuation allowance. Utilization of the net operating loss and research and development credit carryforwards may be subject to a substantial annual limitation under Sections 382 and 383 of the Internal Revenue Code of 1986 due to ownership change limitations that have occurred previously or that could occur in the future. These ownership changes may limit the amount of net operating loss and research and development credit carryforwards that can be utilized annually to offset future taxable income and tax, respectively. As of December 31, 2020, the Company had not yet completed an analysis of whether its net operating loss and research and development credit carryforwards may be limited. At December 31, 2020 and 2019, the Company had no unrecognized tax benefits. Furthermore, as of December 31, 2020 and 2019, the Company had no accrued interest or penalties related to uncertain tax positions and no amounts have been recognized in our consolidated statements of operations. The Company will recognize interest and penalties related to uncertain tax positions in income tax expense. The Company files income tax returns in the U.S. Federal, California, Massachusetts, New Jersey, New York, and Pennsylvania jurisdictions. The statute of limitations for assessment by the Internal Revenue Service, or IRS, and state tax authorities is closed for tax years prior to 2017, although carryforward attributes that were generated prior to tax year 2017 may still be adjusted upon examination by the IRS or state tax authorities if they either have been or will be used in a future period. There are currently no federal or state audits in progress. |
COMMITMENTS AND CONTINGENCIES
COMMITMENTS AND CONTINGENCIES | 12 Months Ended |
Dec. 31, 2020 | |
Commitments and Contingencies Disclosure [Abstract] | |
COMMITMENTS AND CONTINGENCIES | COMMITMENTS AND CONTINGENCIES Leases The Company leases laboratory and office space under a lease agreement that expires on April 30, 2024. The lease agreement and most recent amendment contained escalating rent payments. Rent expense is recorded on a straight-line basis. The Company is obligated to make minimum lease payments under the facility lease as follows (in thousands): Years Ending December 31, 2021 $ 1,507 2022 1,672 2023 1,722 2024 580 Total $ 5,481 Rent expense in each of the years ended December 31, 2020 and 2019 was $1.3 million and $1.2 million, respectively. Other Commitments We enter into contracts in the normal course of business with contract research organizations ("CROs"), contract manufacturing organizations ("CMOs") and other third parties for preclinical research studies, Clinical Studies, Clinical Trials, and testing and manufacturing services. These contracts do not contain minimum purchase commitments and are cancelable by upon prior written notice. Payments due upon cancellation consist only of payments for services provided or expenses incurred, including non-cancelable obligations of service providers, up to the date of cancellation. Legal Proceedings The Company is not currently party to any material legal proceedings. At each reporting date, the Company evaluates whether or not a potential loss amount or a potential range of loss is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. The Company expenses as incurred the costs related to such legal proceedings. |
NET LOSS PER SHARE
NET LOSS PER SHARE | 12 Months Ended |
Dec. 31, 2020 | |
Earnings Per Share [Abstract] | |
NET LOSS PER SHARE | NET LOSS PER SHARE Basic and diluted net loss per share attributable to common stockholders was calculated as follows (in thousands, except share and per share amounts): December 31, 2020 2019 Numerator: Net loss $ (56,527) $ (59,037) Accretion of redeemable convertible preferred stock — (46) Net loss attributable to common stockholders $ (56,527) $ (59,083) Denominator: Weighted average common shares outstanding, basic and diluted 31,747,676 16,624,941 Net loss per share, basic and diluted $ (1.78) $ (3.55) The Company excluded the following potential shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share for the periods indicated because including them would have had an anti-dilutive effect: December 31, 2020 2019 Options to purchase common stock 4,919,960 5,176,944 Unvested restricted stock units 347,587 — Shares issuable under employee stock purchase plan 9,830 — 5,277,377 5,176,944 |
401(k) PLAN
401(k) PLAN | 12 Months Ended |
Dec. 31, 2020 | |
Retirement Benefits [Abstract] | |
401(k) PLAN | 401(k) PLANThe Company has a 401(k) retirement and savings plan (the "Plan") covering all qualified employees. The Plan allows each participant to contribute a portion of his or her base wages up to an amount not to exceed an annual statutory maximum. The Company is permitted to make discretionary matching contributions to the Plan. As of December 31, 2020, the Company's matching contributions totaled $0.3 million. The Company did not make matching contributions as part of the Plan as of December 31, 2019. |
RELATED- PARTY TRANSACTIONS
RELATED- PARTY TRANSACTIONS | 12 Months Ended |
Dec. 31, 2020 | |
Related Party Transactions [Abstract] | |
RELATED- PARTY TRANSACTIONS | RELATED-PARTY TRANSACTIONSIn August 2019, the Company entered into a consulting agreement with the Chairman of the Company's Board of Directors, to provide various consulting services to the Company. The total expense under the agreement for the year ended December 31, 2020 and 2019 was $0.3 million and $0.3 million, respectively. As of December 31, 2020 and 2019 there were no amounts payable to the Chairman for costs related to the consulting agreement. |
SUBSEQUENT EVENTS
SUBSEQUENT EVENTS | 12 Months Ended |
Dec. 31, 2020 | |
Subsequent Events [Abstract] | |
SUBSEQUENT EVENTS | SUBSEQUENT EVENTSThe Company has evaluated subsequent events for financial statement purposes occurring through March 17, 2021, the date that these consolidated financial statements were issued, and determined that there are no material recognized or unrecognized subsequent events requiring disclosure. |
SUMMARY OF SIGNIFICANT ACCOUN_2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) | 12 Months Ended |
Dec. 31, 2020 | |
Accounting Policies [Abstract] | |
Basis of Presentation | Basis of Presentation The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). Any reference in these notes to applicable guidance is meant to refer to the authoritative United States generally accepted accounting principles as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Update (“ASU”) of the Financial Accounting Standards Board (“FASB”). |
Principles of Consolidation | Principles of Consolidation The accompanying consolidated financial statements include the accounts of Axcella Health Inc. and its wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. |
Segment Information | Segment InformationOperating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the CEO, who is the chief operating decision maker, in making decisions on how to allocate resources and assess performance. The Company operates in one reportable business segment. |
Use of Estimates | Use of Estimates The preparation of the consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of expenses during the reporting period. The Company bases its estimates on historical experience, known trends and other market-specific or relevant factors that it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates as there are changes in circumstances, facts and experience. Actual results may differ from those estimates or assumptions. |
Cash and Cash Equivalents | Cash and Cash Equivalents Cash and cash equivalents include cash held in banks and amounts held in interest-bearing money market accounts, Cash equivalents are carried at cost, which approximates their fair market value. The Company considers all highly liquid investments with a remaining maturity when purchased of three months or less to also be cash equivalents. |
Marketable Securities | Marketable Securities The Company’s marketable securities, which consisted of corporate debt obligations as of December 31, 2020, are classified as available-for-sale and are reported at fair value. Unrealized gains and losses on available-for-sale securities are reported as a component of accumulated other comprehensive income (loss) in stockholders’ equity. Realized gains and losses and declines in value determined to be other than temporary are based on the specific identification method and are included as a component of other income (expense), net in the consolidated statements of operations and comprehensive loss. The Company evaluates its marketable securities with unrealized losses for other-than-temporary impairment. When assessing marketable securities for other-than-temporary declines in value, the Company considers such factors as, among other things, how significant the decline in value is as a percentage of the original cost, how long the market value of the investment has been less than its original cost, the Company’s ability and intent to retain the investment for a period of time sufficient to allow for any anticipated recovery in fair value and market conditions in general. If any adjustment to fair value reflects a decline in the value of the investment that the Company considers to be “other than temporary,” the Company reduces the investment to fair value through a charge to the statement of operations and comprehensive loss. No such adjustments were necessary during the periods presented. |
Concentrations of Credit Risk | Concentrations of Credit Risk The Company has no off-balance sheet risk, such as foreign exchange contracts, option contracts, or other foreign hedging arrangements. Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash, cash equivalents, and marketable securities. The Company maintains its cash and cash equivalent balances and marketable securities with financial institutions that management believes are creditworthy. The Company’s cash equivalents and marketable securities as of December 31, 2020 consisted of corporate obligations, bank deposits, and money market funds that invest in U.S. treasury securities. The Company's investment policy includes guidelines on the quality of the institutions and financial instruments and defines the allowable investments that the Company believes minimizes the exposure to concentrations of credit risk. The Company has not experienced any credit losses and does not believe that it is subject to significant credit risk. |
Fair Value Measurements | Fair Value Measurements Certain assets and liabilities of the Company are carried at fair value. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Financial assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy, of which the first two are considered observable and the last is considered unobservable: • Level 1 — Quoted prices in active markets for identical assets or liabilities. • Level 2 — Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data. • Level 3 — Unobservable inputs that are supported by little or no market activity that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques. The Company’s cash equivalents and marketable securities are carried at fair value, determined according to the fair value hierarchy described above. The carrying values of the Company’s accounts payable and accrued expenses approximate their fair values due to the short-term nature of these liabilities. The carrying value of the long term debt approximates fair value as evidenced by the recent amendment to the Company's debt facility. |
Property and Equipment | Property and Equipment Property and equipment are recorded at cost. Depreciation and amortization is calculated using the straight-line method over the following estimated useful lives of the assets: Estimated useful life Computer equipment and software 3 years Office equipment 3 - 5 years Laboratory equipment 5 years Furniture and fixtures 5 years Leasehold improvements Shorter of the asset’s estimated Upon disposal, retirement or sale, the cost of assets disposed of and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is included in the results of operations. Expenditures for repairs and maintenance that do not improve or extend the lives of the respective assets are charged to expense as incurred. |
Impairment of Long-Lived Assets | Impairment of Long-Lived Assets Long-lived assets consist of property and equipment. The Company reviews long-lived assets when events or changes in circumstances indicate the carrying value of the assets may not be recoverable. Recoverability is measured by comparison of the book values of the assets to future net undiscounted cash flows that the assets are expected to generate. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the book value of the assets exceed their fair value, which is measured based on the projected discounted future net cash flows arising from the assets. There were no significant impairments of long‑lived assets for the years ended December 31, 2020 or 2019. |
Research and Development Costs | Research and Development Costs Research and development costs are expensed as incurred. Research and development expenses consist of costs incurred in performing research and development activities, including salaries, stock-based compensation and benefits, facilities costs, depreciation, third-party license fees, and external costs of outside vendors engaged to conduct preclinical development activities, Clinical Studies and Clinical Trials as well as to manufacture research and development materials. Non-refundable prepayments for goods or services that will be used or rendered for future research and development activities are deferred and are recognized as an expense as the goods are consumed or the related services are performed. The Company has entered into various research and development related contracts. The Company records accrued liabilities for research costs incurred but not paid. When measuring the accrued liabilities, the Company analyzes progress of the Clinical Studies or Clinical Trials, including the phase or completion of events, invoices received and contracted costs. Significant judgments and estimates are made in determining the accrued balances at the end of any reporting period. Actual results could differ from the Company’s estimates. The Company’s historical accrual estimates have not been materially different from the actual costs. |
Stock-Based Compensation | Stock-Based Compensation The Company measures the estimated fair value of the stock-based award on the date of grant and recognizes compensation expense for those awards over the requisite service period, which is generally the vesting period of the award. For stock-based awards with service-based vesting conditions, the Company records the expense for these awards using the straight-line method. For stock options with performance-based vesting conditions, the Company records the expense for these awards over the requisite service period using an accelerated attribution method to the extent the achievement of the performance condition is probable. The Company accounts for forfeitures as they occur. The Company classifies stock-based compensation expense in the consolidated statements of operations in the same manner in which the award recipient’s cash compensation costs are classified. |
Income Taxes | Income Taxes Deferred tax assets and liabilities are recognized for the expected future tax consequences of events that have been included in the consolidated financial statements or tax returns. Under this method, deferred tax assets and liabilities are determined based on the difference between the consolidated financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. A valuation allowance is provided to reduce the deferred tax asset to an amount, which, more likely than not, will be realized. The Company recognizes the tax benefit from any uncertain tax positions only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the consolidated financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. Interest and penalties associated with uncertain tax positions are recorded as a component of income tax expense. As of December 31, 2020 and 2019, the Company has not identified any uncertain tax positions for which reserves would be required. |
Comprehensive Loss | Comprehensive LossComprehensive loss includes net loss as well as other changes in stockholders’ equity (deficit) that result from transactions and economic events other than those with stockholders. |
Net Loss Per Share | Net Loss Per ShareBasic net loss per share attributable to common stockholders is calculated by dividing net loss by the weighted average shares outstanding during the period. Diluted net income (loss) per share is calculated by adjusting weighted average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period. All common stock equivalents have been excluded from the calculation of diluted net loss per share, as their effect would be anti-dilutive for all periods presented. |
Recently Adopted Accounting Pronouncements and Accounting Pronouncements Issued and Not Adopted | Recently Adopted Accounting Pronouncements Accounting Pronouncements Issued and Not Adopted In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”), as amended by various subsequently issued ASUs. The standard requires lessees to recognize an operating lease with a term greater than one year on their balance sheets as a right-of-use asset and corresponding lease liability, measured at the present value of the lease payments. The new standard will become effective for the Company on January 1, 2022. The Company expects to apply the modified retrospective approach as of the date of adoption such that prior periods will not be restated. The Company is evaluating the effect that adoption of the standard is expected to have on the Company’s consolidated financial statements and related disclosures and will recognize a lease obligation and right of use asset for its existing operating leases with a lease term greater than one year upon adoption. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326). The new standard adjusts the accounting for assets held at amortized costs basis, including marketable securities accounted for as available-for-sale. The standard eliminates the probable initial recognition threshold and requires an entity to reflect its current estimate of all expected credit losses. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial assets to present the net amount expected to be collected. The Company is required to adopt this standard effective January 1, 2023 and the Company is evaluating the impact the guidance will have on its consolidated financial statements. |
SUMMARY OF SIGNIFICANT ACCOUN_3
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Accounting Policies [Abstract] | |
Summary of Property and Equipment | Depreciation and amortization is calculated using the straight-line method over the following estimated useful lives of the assets: Estimated useful life Computer equipment and software 3 years Office equipment 3 - 5 years Laboratory equipment 5 years Furniture and fixtures 5 years Leasehold improvements Shorter of the asset’s estimated Property and equipment consist of the following (in thousands): December 31, 2020 2019 Laboratory equipment $ 3,022 $ 3,511 Leasehold improvements 564 597 Office and computer equipment 111 111 Furniture and fixtures 122 122 Property and equipment, gross 3,819 4,341 Less: accumulated depreciation and amortization (3,459) (3,733) Property and equipment, net $ 360 $ 608 |
FAIR VALUE MEASUREMENTS (Tables
FAIR VALUE MEASUREMENTS (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Fair Value Disclosures [Abstract] | |
Schedule of Fair Value Hierarchy of Assets and Liabilities | The following tables present the Company’s assets that are measured at fair value on a recurring basis and indicate the level within the fair value hierarchy (in thousands): Fair value measurements at December 31, 2020 using: Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 69,118 $ — $ — $ 69,118 Marketable securities: Corporate obligations — 35,739 — 35,739 Total $ 69,118 $ 35,739 $ — $ 104,857 Fair value measurements at December 31, 2019 using: Level 1 Level 2 Level 3 Total Assets: Cash equivalents $ 91,803 $ — $ — $ 91,803 Total $ 91,803 $ — $ — $ 91,803 |
CASH, CASH EQUIVALENTS, AND M_2
CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Cash and Cash Equivalents [Abstract] | |
Schedule of Cash, Cash Equivalents and Marketable Securities | As of December 31, 2020 and 2019, cash, cash equivalents, and marketable securities by security type consisted of the following (in thousands): December 31, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Cash and cash equivalents $ 71,590 $ — $ — $ 71,590 Corporate obligations 35,773 1 (35) 35,739 Total $ 107,363 $ 1 $ (35) $ 107,329 December 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Cash and cash equivalents $ 92,053 $ — $ — $ 92,053 Corporate obligations — — — — Total $ 92,053 $ — $ — $ 92,053 |
Investments Classified by Contractual Maturity Date | The fair values of cash equivalents and marketable securities by contractual maturity were as follows (in thousands): December 31, Contractual maturities 2020 2019 Mature in one year or less $ 86,338 $ 91,803 Mature in two years or less 18,519 — Total $ 104,857 $ 91,803 |
PROPERTY AND EQUIPMENT (Tables)
PROPERTY AND EQUIPMENT (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Property, Plant and Equipment [Abstract] | |
Summary of Property and Equipment | Depreciation and amortization is calculated using the straight-line method over the following estimated useful lives of the assets: Estimated useful life Computer equipment and software 3 years Office equipment 3 - 5 years Laboratory equipment 5 years Furniture and fixtures 5 years Leasehold improvements Shorter of the asset’s estimated Property and equipment consist of the following (in thousands): December 31, 2020 2019 Laboratory equipment $ 3,022 $ 3,511 Leasehold improvements 564 597 Office and computer equipment 111 111 Furniture and fixtures 122 122 Property and equipment, gross 3,819 4,341 Less: accumulated depreciation and amortization (3,459) (3,733) Property and equipment, net $ 360 $ 608 |
ACCRUED EXPENSES AND OTHER CU_2
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Payables and Accruals (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Payables and Accruals [Abstract] | |
Schedule of Accrued Expenses and Other Liabilities | Accrued expenses and other current liabilities consisted of the following (in thousands): December 31, 2020 2019 Accrued employee compensation and benefits $ 2,998 $ 3,109 Accrued external research and development expenses 1,870 1,799 Accrued professional fees and other 626 1,450 Total accrued expenses and other current liabilities $ 5,494 $ 6,358 |
DEBT FINANCING (Tables)
DEBT FINANCING (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Debt Disclosure [Abstract] | |
Summary of Long-term Debt | Long-term debt consisted of the following (in thousands): December 31, 2020 2019 Principal amount of long-term debt $ 26,000 $ 26,000 Debt discount (308) (456) Deferred financing fees (470) (647) Long-term debt, net of discount $ 25,222 $ 24,897 |
Schedule of Maturities of Long-term Debt | The scheduled principal maturity of the long term debt as of December 31, 2020 is as follows (in thousands): Year Ending December 31, 2021 $ — 2022 23,833 2023 2,167 $ 26,000 |
STOCK-BASED COMPENSATION (Table
STOCK-BASED COMPENSATION (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Share-based Payment Arrangement [Abstract] | |
Summary of Stock Based Compensation Expense | In connection with all share-based payment awards, total stock-based compensation expense recognized was as follows (in thousands): December 31, 2020 2019 Research and development $ 2,670 $ 2,461 General and administrative 3,617 3,363 Total stock-based compensation expense $ 6,287 $ 5,824 |
Summary of Fair Value Assumptions for Stock Options | The fair value of each option issued was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions: Year Ending December 31, 2020 2019 Risk-free interest rate 1.01 % 2.09 % Expected option life (in years) 5.97 6.16 Expected dividend yield 0 % 0 % Expected volatility 79 % 71 % |
Summary of Options Activity | The following table summarizes the Company’s stock option activity for the year ended December 31, 2020: Options Weighted Weighted Intrinsic Outstanding as of January 1, 2020 5,176,944 $ 7.35 Granted 1,021,940 4.57 Exercised (4,071) 1.12 Cancelled (1,274,853) 8.91 Outstanding as of December 31, 2020 4,919,960 $ 6.37 7.04 $ 2,343 Exercisable as of December 31, 2020 3,015,220 $ 6.59 6.16 $ 1,459 Vested or expected to vest as of December 31, 2020 4,894,960 $ 6.36 7.00 $ 2,298 |
Share-based Payment Arrangement, Restricted Stock Unit, Activity | The following table summarizes the Company's restricted stock unit activity for the year ended December 31, 2020: Number of Shares Weighted Average Grant Date Fair Value per Share Outstanding as of January 1, 2020 66,801 $ 3.40 Granted 401,166 4.05 Vested — — Forfeited (120,380) 3.72 Outstanding as of December 31, 2020 347,587 $ 4.04 |
INCOME TAXES (Tables)
INCOME TAXES (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Income Tax Disclosure [Abstract] | |
Schedule of Effective Income Tax Rate Reconciliation | A reconciliation of income taxes computed using the U.S. federal statutory rate to that reflected in operations as of December 31, 2020 and 2019 are as follows: December 31, 2020 2019 Tax at U.S. statutory rate 21.0 % 21.0 % State taxes, net of federal benefit 6.1 % 6.0 % Permanent differences (0.8) % (1.9) % Tax credits 3.0 % 4.1 % Other 0.3 % — % Change in valuation allowance (29.6) % (29.2) % Effective income tax rate 0.0 % 0.0 % |
Schedule of Deferred Tax Assets and Liabilities | Significant components of the Company’s deferred tax asset at December 31, 2020 and 2019 are as follows (in thousands): December 31, 2020 2019 Net operating loss carryforwards $ 65,911 $ 52,242 Research and development tax credit carryforwards 8,896 7,917 Start-up costs 28 35 Capitalized research and development costs 64 169 Depreciation 304 413 Accrued expenses 1,059 1,102 Stock-based compensation 3,253 1,087 Other items 1,175 971 Total deferred tax assets 80,690 63,936 Valuation allowance (80,690) (63,936) Net deferred tax asset $ — $ — |
COMMITMENTS AND CONTINGENCIES (
COMMITMENTS AND CONTINGENCIES (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Commitments and Contingencies Disclosure [Abstract] | |
Schedule of Future Minimum Lease Payments | The Company is obligated to make minimum lease payments under the facility lease as follows (in thousands): Years Ending December 31, 2021 $ 1,507 2022 1,672 2023 1,722 2024 580 Total $ 5,481 |
NET LOSS PER SHARE (Tables)
NET LOSS PER SHARE (Tables) | 12 Months Ended |
Dec. 31, 2020 | |
Earnings Per Share [Abstract] | |
Schedule of Earnings Per Share, Basic and Diluted | Basic and diluted net loss per share attributable to common stockholders was calculated as follows (in thousands, except share and per share amounts): December 31, 2020 2019 Numerator: Net loss $ (56,527) $ (59,037) Accretion of redeemable convertible preferred stock — (46) Net loss attributable to common stockholders $ (56,527) $ (59,083) Denominator: Weighted average common shares outstanding, basic and diluted 31,747,676 16,624,941 Net loss per share, basic and diluted $ (1.78) $ (3.55) |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The Company excluded the following potential shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share for the periods indicated because including them would have had an anti-dilutive effect: December 31, 2020 2019 Options to purchase common stock 4,919,960 5,176,944 Unvested restricted stock units 347,587 — Shares issuable under employee stock purchase plan 9,830 — 5,277,377 5,176,944 |
NATURE OF BUSINESS (Details)
NATURE OF BUSINESS (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
Accumulated deficit | $ 272,613 | $ 216,086 |
Cash, cash equivalents and marketable securities | $ 107,300 |
SUMMARY OF SIGNIFICANT ACCOUN_4
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) | 12 Months Ended |
Dec. 31, 2020segment | |
Accounting Policies [Abstract] | |
Number of operating segments | 1 |
SUMMARY OF SIGNIFICANT ACCOUN_5
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment Useful Life (Details) | 12 Months Ended |
Dec. 31, 2020 | |
Computer equipment and software | |
Property, Plant and Equipment [Line Items] | |
Estimated useful life | 3 years |
Office equipment | Minimum | |
Property, Plant and Equipment [Line Items] | |
Estimated useful life | 3 years |
Office equipment | Maximum | |
Property, Plant and Equipment [Line Items] | |
Estimated useful life | 5 years |
Laboratory equipment | |
Property, Plant and Equipment [Line Items] | |
Estimated useful life | 5 years |
Furniture and fixtures | |
Property, Plant and Equipment [Line Items] | |
Estimated useful life | 5 years |
FAIR VALUE MEASUREMENTS - Fair
FAIR VALUE MEASUREMENTS - Fair Value Hierarchy (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Assets: | ||
Corporate obligations | $ 107,329 | $ 92,053 |
Corporate obligations | ||
Assets: | ||
Cash equivalents | 71,590 | 92,053 |
Corporate obligations | 35,739 | 0 |
Fair Value, Recurring | ||
Assets: | ||
Cash equivalents | 69,118 | 91,803 |
Total | 104,857 | 91,803 |
Fair Value, Recurring | Corporate obligations | ||
Assets: | ||
Corporate obligations | 35,739 | |
Fair Value, Recurring | Level 1 | ||
Assets: | ||
Cash equivalents | 69,118 | 91,803 |
Total | 69,118 | 91,803 |
Fair Value, Recurring | Level 1 | Corporate obligations | ||
Assets: | ||
Corporate obligations | 0 | |
Fair Value, Recurring | Level 2 | ||
Assets: | ||
Cash equivalents | 0 | 0 |
Total | 35,739 | 0 |
Fair Value, Recurring | Level 2 | Corporate obligations | ||
Assets: | ||
Corporate obligations | 35,739 | |
Fair Value, Recurring | Level 3 | ||
Assets: | ||
Cash equivalents | 0 | 0 |
Total | 0 | $ 0 |
Fair Value, Recurring | Level 3 | Corporate obligations | ||
Assets: | ||
Corporate obligations | $ 0 |
CASH, CASH EQUIVALENTS, AND M_3
CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Cash and Cash Equivalents [Line Items] | ||
Amortized Cost | $ 71,590 | $ 92,053 |
Amortized Cost | 107,363 | 92,053 |
Gross Unrealized Gains | 1 | 0 |
Gross Unrealized Losses | (35) | 0 |
Estimated Fair Value | 107,329 | 92,053 |
Corporate obligations | ||
Cash and Cash Equivalents [Line Items] | ||
Amortized Cost | 35,773 | 0 |
Gross Unrealized Gains | 1 | 0 |
Gross Unrealized Losses | (35) | 0 |
Cash and cash equivalents, estimated fair value | 71,590 | 92,053 |
Estimated Fair Value | $ 35,739 | $ 0 |
CASH, CASH EQUIVALENTS, AND M_4
CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES - Contractual Obligation (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Cash and Cash Equivalents [Abstract] | ||
Mature in one year or less | $ 86,338 | $ 91,803 |
Mature in two years or less | 18,519 | 0 |
Total | $ 104,857 | $ 91,803 |
CASH, CASH EQUIVALENTS, AND M_5
CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES - Narrative (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019 |
Cash and Cash Equivalents [Abstract] | ||
Cash | $ 2.5 | $ 0.3 |
PROPERTY AND EQUIPMENT - Summar
PROPERTY AND EQUIPMENT - Summary of Property and Equipment (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Property, Plant and Equipment [Line Items] | ||
Property and equipment, gross | $ 3,819 | $ 4,341 |
Less: accumulated depreciation and amortization | (3,459) | (3,733) |
Property and equipment, net | 360 | 608 |
Laboratory equipment | ||
Property, Plant and Equipment [Line Items] | ||
Property and equipment, gross | 3,022 | 3,511 |
Leasehold improvements | ||
Property, Plant and Equipment [Line Items] | ||
Property and equipment, gross | 564 | 597 |
Office and computer equipment | ||
Property, Plant and Equipment [Line Items] | ||
Property and equipment, gross | 111 | 111 |
Furniture and fixtures | ||
Property, Plant and Equipment [Line Items] | ||
Property and equipment, gross | $ 122 | $ 122 |
PROPERTY AND EQUIPMENT - Narrat
PROPERTY AND EQUIPMENT - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Property, Plant and Equipment [Abstract] | ||
Depreciation and amortization | $ 419 | $ 662 |
Laboratory equipment | ||
Property, Plant and Equipment [Line Items] | ||
Disposal of lab equipment | $ 700 |
ACCRUED EXPENSES AND OTHER CU_3
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Payables and Accruals [Abstract] | ||
Accrued employee compensation and benefits | $ 2,998 | $ 3,109 |
Accrued external research and development expenses | 1,870 | 1,799 |
Accrued professional fees and other | 626 | 1,450 |
Total accrued expenses and other current liabilities | $ 5,494 | $ 6,358 |
DEBT FINANCING - Summary of Lon
DEBT FINANCING - Summary of Long-term Debt (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Debt Disclosure [Abstract] | ||
Principal amount of long-term debt | $ 26,000 | $ 26,000 |
Debt discount | (308) | (456) |
Deferred financing fees | (470) | (647) |
Long-term debt, net of discount | $ 25,222 | $ 24,897 |
DEBT FINANCING - Narrative (Det
DEBT FINANCING - Narrative (Details) $ in Thousands | Aug. 28, 2020 | Feb. 28, 2022USD ($) | Jan. 31, 2018 | Dec. 31, 2020USD ($) | Dec. 31, 2019USD ($) | Oct. 31, 2018USD ($) |
Line of Credit Facility [Line Items] | ||||||
Payment of debt issuance costs | $ (39) | $ 0 | ||||
2018 Facility | Secured Debt | LIBOR | ||||||
Line of Credit Facility [Line Items] | ||||||
Basis spread on interest rate | 8.50% | |||||
Amended 2018 Facility | Secured Debt | ||||||
Line of Credit Facility [Line Items] | ||||||
Increase in final payment fee percent | 0.0535 | |||||
Final payment fee percent | 0.0635 | |||||
Amended 2018 Facility | Secured Debt | LIBOR | ||||||
Line of Credit Facility [Line Items] | ||||||
Basis spread on interest rate floor | 0.002 | |||||
Interest rate during period | 8.70% | |||||
Amended 2018 Facility | Line of Credit | ||||||
Line of Credit Facility [Line Items] | ||||||
Terminal fee | $ 1,700 | |||||
Terminal fee, at carrying value | $ 1,100 | $ 900 | ||||
Amended 2020 Facility | Forecast | Line of Credit | ||||||
Line of Credit Facility [Line Items] | ||||||
Principal periodic payments | $ 2,200 |
DEBT FINANCING - Maturities of
DEBT FINANCING - Maturities of Long-term Debt (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Debt Disclosure [Abstract] | ||
2021 | $ 0 | |
2022 | 23,833 | |
2023 | 2,167 | |
Principal amount of long-term debt | $ 26,000 | $ 26,000 |
STOCKHOLDERS' EQUITY - Summary
STOCKHOLDERS' EQUITY - Summary of Preferred Stock Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | Jun. 05, 2020 | May 18, 2020 | May 13, 2019 | May 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 |
Class of Stock [Line Items] | ||||||
Common and preferred stock, shares authorized (in shares) | 160,000,000 | |||||
Common stock authorized (in shares) | 150,000,000 | 150,000,000 | 150,000,000 | |||
Common stock, par value (USD per share) | $ 0.001 | $ 0.001 | $ 0.001 | |||
Preferred stock, authorized (in shares) | 10,000,000 | |||||
Preferred stock, par value (USD per share) | $ 0.001 | |||||
Issuance costs | $ 0.5 | |||||
IPO | ||||||
Class of Stock [Line Items] | ||||||
Shares converted (in shares) | 14,641,997 | |||||
Shares sold (in shares) | 3,571,428 | |||||
Shares sold, par value (USD per share) | $ 20 | |||||
Net proceeds on offering | $ 64.5 | |||||
2020 Follow-on Offering | ||||||
Class of Stock [Line Items] | ||||||
Shares sold (in shares) | 12,650,000 | |||||
Net proceeds on offering | $ 55.9 | |||||
At-the-Market Offering | ||||||
Class of Stock [Line Items] | ||||||
Shares sold (in shares) | 1,721,267 | |||||
Net proceeds on offering | $ 9.3 | |||||
At-the-Market Offering | Maximum | ||||||
Class of Stock [Line Items] | ||||||
Net proceeds on offering | $ 35 |
STOCK-BASED COMPENSATION - Narr
STOCK-BASED COMPENSATION - Narrative (Details) - USD ($) | Apr. 29, 2019 | Dec. 31, 2020 | Dec. 31, 2019 |
Shares issuable under employee stock purchase plan | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Intrinsic value, options exercised | $ 0 | $ 400,000 | |
Unrecognized compensation expense related to unvested stock options | $ 6,700,000 | ||
Unrecognized compensation expense, recognition period | 2 years 1 month 6 days | ||
Restricted Stock Units (RSUs) | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Unrecognized compensation expense related to unvested stock options | $ 1,000,000 | ||
Unrecognized compensation expense, recognition period | 1 year 9 months 18 days | ||
Stock Option And Incentive Plan 2019 | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Maximum award term | 10 years | ||
Number of shares initially reserved for future issuance (in shares) | 905,000 | ||
Annual percent increase in authorized shares available for issuance under share based payment arrangements | 4.00% | ||
Stock Option And Incentive Plan 2019 | Minimum | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Award vesting period | 3 years | ||
Stock Option And Incentive Plan 2019 | Maximum | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Award vesting period | 4 years | ||
Stock Option And Incentive Plan 2019 | Common stock | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Common stock reserved for future issuance (in shares) | 936,148 | ||
Employee Stock Purchase Plan 2019 | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Number of shares initially reserved for future issuance (in shares) | 237,181 | ||
Annual percent increase in authorized shares available for issuance under share based payment arrangements | 1.00% | ||
Employee Stock Purchase Plan 2019 | Shares issuable under employee stock purchase plan | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Stock-based compensation expense | $ 100,000 | $ 0 | |
Employee Stock Purchase Plan 2019 | Shares issuable under employee stock purchase plan | Common stock | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Common stock reserved for future issuance (in shares) | 429,026 | ||
2010 Plan | Shares issuable under employee stock purchase plan | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Weighted-average grand date fair value of options granted in the period (USD per share) | $ 3.06 | $ 7.21 |
STOCK-BASED COMPENSATION - Summ
STOCK-BASED COMPENSATION - Summary of Stock Compensation Expense (Details) - USD ($) $ in Thousands | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
Stock-based compensation expense | $ 6,287 | $ 5,824 |
Research and development | ||
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
Stock-based compensation expense | 2,670 | 2,461 |
General and administrative | ||
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
Stock-based compensation expense | $ 3,617 | $ 3,363 |
STOCK-BASED COMPENSATION - Stoc
STOCK-BASED COMPENSATION - Stock Option Fair Value Measurement Inputs (Details) - 2010 Plan - Stock options | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
Risk-free interest rate | 1.01% | 2.09% |
Expected option life (in years) | 5 years 11 months 19 days | 6 years 1 month 28 days |
Expected dividend yield | 0.00% | 0.00% |
Expected volatility | 79.00% | 71.00% |
STOCK-BASED COMPENSATION - Su_2
STOCK-BASED COMPENSATION - Summary of Option Activity (Details) $ / shares in Units, $ in Thousands | 12 Months Ended |
Dec. 31, 2020USD ($)$ / sharesshares | |
Options | |
Outstanding, beginning balance (in shares) | shares | 5,176,944 |
Granted (in shares) | shares | 1,021,940 |
Exercised (in shares) | shares | (4,071) |
Canceled (in shares) | shares | (1,274,853) |
Outstanding, ending balance (in shares) | shares | 4,919,960 |
Options exercisable (in shares) | shares | 3,015,220 |
Options vested or expected to vest (in shares) | shares | 4,894,960 |
Weighted Average Exercise Price | |
Weighted average exercise price, outstanding, beginning balance (USD per share) | $ / shares | $ 7.35 |
Weighted-average exercise price, granted (USD per share) | $ / shares | 4.57 |
Weighted-average exercise price, exercised (USD per share) | $ / shares | 1.12 |
Weighted-average exercise price, canceled (USD per share) | $ / shares | 8.91 |
Weighted average exercise price, outstanding, ending balance (USD per share) | $ / shares | 6.37 |
Weighted-average exercise price, options exercisable (USD per share) | $ / shares | 6.59 |
Weighted-average exercise price, options vested or expected to vest (USD per share) | $ / shares | $ 6.36 |
Weighted Average Remaining Life (in Years) | |
Weighted Average Remaining Life, Outstanding (in Years) | 7 years 14 days |
Weighted Average Remaining Life, Options exercisable (in Years) | 6 years 1 month 28 days |
Weighted Average Remaining Life, Options vested or expected to vest (in Years) | 7 years |
Intrinsic Value, Outstanding | $ | $ 2,343,000 |
Intrinsic Value, Options exercisable | $ | 1,459,000 |
Intrinsic Value, Options vested or expected to vest | $ | $ 2,298,000 |
STOCK-BASED COMPENSATION - Su_3
STOCK-BASED COMPENSATION - Summary of Restricted Stock Units (Details) - Restricted Stock Units (RSUs) | 12 Months Ended |
Dec. 31, 2020$ / sharesshares | |
Number of Shares | |
Outstanding, beginning balance (in shares) | shares | 66,801 |
Granted (in shares) | shares | 401,166 |
Vested (in shares) | shares | 0 |
Forfeited (in shares) | shares | (120,380) |
Outstanding, ending balance (in shares) | shares | 347,587 |
Weighted Average Grant Date Fair Value per Share | |
Weighted average exercise price, outstanding, beginning balance (USD per share) | $ / shares | $ 3.40 |
Weighted-average exercise price, granted (USD per share) | $ / shares | 4.05 |
Weighted-average exercise price, vested (USD per share) | $ / shares | 0 |
Weighted-average exercise price, forfeited (USD per share) | $ / shares | 3.72 |
Weighted average exercise price, outstanding, ending balance (USD per share) | $ / shares | $ 4.04 |
INCOME TAXES - Effective Income
INCOME TAXES - Effective Income Tax Rate (Details) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Income Tax Disclosure [Abstract] | ||
Tax at U.S. statutory rate | 21.00% | 21.00% |
State taxes, net of federal benefit | 6.10% | 6.00% |
Permanent differences | (0.80%) | (1.90%) |
Tax credits | 3.00% | 4.10% |
Other | 0.30% | 0.00% |
Change in valuation allowance | (29.60%) | (29.20%) |
Effective income tax rate | 0.00% | 0.00% |
INCOME TAXES - Net Deferred Tax
INCOME TAXES - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 |
Income Tax Disclosure [Abstract] | ||
Net operating loss carryforwards | $ 65,911 | $ 52,242 |
Research and development tax credit carryforwards | 8,896 | 7,917 |
Start-up costs | 28 | 35 |
Capitalized research and development costs | 64 | 169 |
Depreciation | 304 | 413 |
Accrued expenses | 1,059 | 1,102 |
Stock-based compensation | 3,253 | 1,087 |
Other items | 1,175 | 971 |
Total deferred tax assets | 80,690 | 63,936 |
Valuation allowance | (80,690) | (63,936) |
Net deferred tax asset | $ 0 | $ 0 |
INCOME TAXES - Narrative (Detai
INCOME TAXES - Narrative (Details) - USD ($) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Income Taxes [Line Items] | ||
Increase (decrease) in valuation allowance | $ 16,800,000 | |
Unrecognized tax benefits | 0 | $ 0 |
Income tax penalties and interest accrued | 0 | 0 |
Interest or penalties recognized | 0 | $ 0 |
Federal | ||
Income Taxes [Line Items] | ||
Net operating loss carryforwards | 242,500,000 | |
Federal | Research And Development Tax Credit Carryforward | ||
Income Taxes [Line Items] | ||
Research and development and other credit carryforwards | 7,000,000 | |
State | ||
Income Taxes [Line Items] | ||
Net operating loss carryforwards | 237,300,000 | |
State | Research And Development Tax Credit Carryforward | ||
Income Taxes [Line Items] | ||
Research and development and other credit carryforwards | $ 2,500,000 |
COMMITMENTS AND CONTINGENCIES -
COMMITMENTS AND CONTINGENCIES - Future Minimum Lease Payments (Details) $ in Thousands | Dec. 31, 2020USD ($) |
Commitments and Contingencies Disclosure [Abstract] | |
2021 | $ 1,507 |
2022 | 1,672 |
2023 | 1,722 |
2024 | 580 |
Total | $ 5,481 |
COMMITMENTS AND CONTINGENCIES_2
COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Commitments and Contingencies Disclosure [Abstract] | ||
Rent expense | $ 1.3 | $ 1.2 |
NET LOSS PER SHARE - Calculatio
NET LOSS PER SHARE - Calculation of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Numerator: | ||
Net loss | $ (56,527) | $ (59,037) |
Accretion of redeemable convertible preferred stock | 0 | (46) |
Net loss attributable to common stockholders | $ (56,527) | $ (59,083) |
Denominator: | ||
Weighted average common shares outstanding, basic and diluted (in shares) | 31,747,676 | 16,624,941 |
Net loss per share, basic and diluted (USD per share) | $ (1.78) | $ (3.55) |
NET LOSS PER SHARE - Summary of
NET LOSS PER SHARE - Summary of Anti-dilutive Securities (Details) - shares | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Antidilutive securities excluded from computation of diluted net loss per share (in shares) | 5,277,377 | 5,176,944 |
Unvested restricted stock units | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Antidilutive securities excluded from computation of diluted net loss per share (in shares) | 347,587 | 0 |
Shares issuable under employee stock purchase plan | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Antidilutive securities excluded from computation of diluted net loss per share (in shares) | 4,919,960 | 5,176,944 |
Employee Stock | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Antidilutive securities excluded from computation of diluted net loss per share (in shares) | 9,830 | 0 |
401(k) PLAN - Narrative (Detail
401(k) PLAN - Narrative (Details) - USD ($) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Retirement Benefits [Abstract] | ||
Company's matching contribution | $ 300,000 | $ 0 |
RELATED-PARTY TRANSACTIONS - Na
RELATED-PARTY TRANSACTIONS - Narrative (Details) - Board of Directors Chairman - USD ($) | 12 Months Ended | |
Dec. 31, 2020 | Dec. 31, 2019 | |
Related Party Services Agreement | ||
Related Party Transaction [Line Items] | ||
Related party costs | $ 300,000 | $ 300,000 |
Related Party Consulting Agreement | ||
Related Party Transaction [Line Items] | ||
Due to related parties | $ 0 | $ 0 |