Document And Entity Information
Document And Entity Information - shares | 9 Months Ended | |
Sep. 30, 2021 | Nov. 04, 2021 | |
Document And Entity Information [Abstract] | ||
Document Type | 10-Q | |
Amendment Flag | false | |
Document Period End Date | Sep. 30, 2021 | |
Document Fiscal Year Focus | 2021 | |
Document Fiscal Period Focus | Q3 | |
Entity Filer Category | Non-accelerated Filer | |
Entity Registrant Name | ELECTRO SENSORS INC | |
Entity Central Index Key | 0000351789 | |
Current Fiscal Year End Date | --12-31 | |
Entity Current Reporting Status | Yes | |
Entity Small Business | true | |
Entity Common Stock, Shares Outstanding | 3,395,521 | |
Trading Symbol | ELSE | |
Entity Emerging Growth Company | false | |
Document Quarterly Report | true | |
Document Transition Report | false | |
Entity File Number | 000-09587 | |
Entity Incorporation, State or Country Code | MN | |
Entity Tax Identification Number | 41-0943459 | |
Entity Address, Address Line One | 6111 Blue Circle Drive | |
Entity Address, City or Town | Minnetonka | |
Entity Address, State or Province | MN | |
Entity Address, Postal Zip Code | 55343-9108 | |
City Area Code | 952 | |
Local Phone Number | 930-0100 | |
Title of 12(b) Security | Common stock | |
Security Exchange Name | NASDAQ | |
Entity Interactive Data Current | Yes | |
Entity Shell Company | false |
Condensed Balance Sheets
Condensed Balance Sheets - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 |
Current assets | ||
Cash and cash equivalents | $ 4,620 | $ 1,090 |
Investments | 5,041 | 8,041 |
Trade receivables, less allowance for doubtful accounts of $11 | 1,325 | 957 |
Inventories | 1,477 | 1,572 |
Other current assets | 207 | 170 |
Income tax receivable | 0 | 26 |
Total current assets | 12,670 | 11,856 |
Deferred income tax asset, net | 270 | 246 |
Intangible assets, net | 50 | 228 |
Property and equipment, net | 919 | 989 |
Total assets | 13,909 | 13,319 |
Current liabilities | ||
Current maturities of financing lease | 6 | 6 |
Accounts payable | 175 | 197 |
Accrued expenses | 629 | 330 |
Accrued income tax | 85 | 0 |
Total current liabilities | 895 | 533 |
Long-term liabilities | ||
Financing lease, net of current maturities | 8 | 12 |
Total long-term liabilities | 8 | 12 |
Commitments and contingencies | ||
Stockholders' equity | ||
Common stock par value $0.10 per share; authorized 10,000,000 shares; 3,395,521 shares issued and outstanding | 339 | 339 |
Additional paid-in capital | 2,040 | 2,036 |
Retained earnings | 10,627 | 10,398 |
Accumulated other comprehensive gain (unrealized gain on available-for-sale securities, net of income tax) | 0 | 1 |
Total stockholders' equity | 13,006 | 12,774 |
Total liabilities and stockholders' equity | $ 13,909 | $ 13,319 |
Condensed Balance Sheets (Paren
Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 |
Balance Sheets [Abstract] | ||
Trade receivables, allowance for doubtful accounts | $ 11 | $ 11 |
Common stock, par value | $ 0.10 | $ 0.10 |
Common stock, shares authorized | 10,000,000 | 10,000,000 |
Common stock, shares issued | 3,395,521 | 3,395,521 |
Common stock, shares outstanding | 3,395,521 | 3,395,521 |
Condensed Statements Of Compreh
Condensed Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | |
Statements Of Comprehensive Income (Loss) [Abstract] | ||||
Net sales | $ 2,154 | $ 1,899 | $ 6,517 | $ 5,914 |
Cost of goods sold | 950 | 907 | 2,947 | 2,825 |
Gross profit | 1,204 | 992 | 3,570 | 3,089 |
Operating expenses | ||||
Selling and marketing | 375 | 417 | 1,087 | 1,318 |
General and administrative | 620 | 420 | 1,521 | 1,325 |
Research and development | 189 | 209 | 675 | 622 |
Total operating expenses | 1,184 | 1,046 | 3,283 | 3,265 |
Operating income (loss) | 20 | (54) | 287 | (176) |
Non-operating income | ||||
Loss on investment | 0 | 0 | 0 | (3) |
Interest expense | (1) | (2) | (1) | (3) |
Interest income | 2 | 2 | 4 | 35 |
Other income | 0 | 0 | 0 | 2 |
Total non-operating income, net | 1 | 0 | 3 | 31 |
Income (loss) before income tax expense (benefit) | 21 | (54) | 290 | (145) |
Provision for (benefit of) income tax | 4 | (8) | 61 | (26) |
Net income (loss) | 17 | (46) | 229 | (119) |
Other comprehensive loss | ||||
Change in unrealized value of available-for-sale securities, net of income tax | 0 | 0 | (1) | 0 |
Other comprehensive loss | 0 | 0 | (1) | 0 |
Net comprehensive income (loss) | $ 17 | $ (46) | $ 228 | $ (119) |
Basic | ||||
Net income (loss) per share | $ 0.01 | $ (0.01) | $ 0.07 | $ (0.04) |
Weighted average shares | 3,395,521 | 3,395,521 | 3,395,521 | 3,395,521 |
Diluted | ||||
Net income (loss) per share | $ 0 | $ (0.01) | $ 0.07 | $ (0.04) |
Weighted average shares | 3,439,377 | 3,395,521 | 3,435,595 | 3,395,521 |
Condensed Statements Of Changes
Condensed Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock Issued [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member] |
Beginning Balance at Dec. 31, 2019 | $ 12,891 | $ 339 | $ 2,030 | $ 10,522 | $ 0 |
Beginning Balance, Shares at Dec. 31, 2019 | 3,395,521 | ||||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Stock-based compensation expense | 5 | 5 | |||
Net income (loss) | (119) | (119) | |||
Ending Balance at Sep. 30, 2020 | 12,777 | $ 339 | 2,035 | 10,403 | 0 |
Ending Balance, Shares at Sep. 30, 2020 | 3,395,521 | ||||
Beginning Balance at Jun. 30, 2020 | 12,822 | $ 339 | 2,034 | 10,449 | 0 |
Beginning Balance, Shares at Jun. 30, 2020 | 3,395,521 | ||||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Stock-based compensation expense | 1 | 1 | |||
Net income (loss) | (46) | (46) | |||
Ending Balance at Sep. 30, 2020 | 12,777 | $ 339 | 2,035 | 10,403 | 0 |
Ending Balance, Shares at Sep. 30, 2020 | 3,395,521 | ||||
Beginning Balance at Dec. 31, 2020 | 12,774 | $ 339 | 2,036 | 10,398 | 1 |
Beginning Balance, Shares at Dec. 31, 2020 | 3,395,521 | ||||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Other comprehensive loss | 1 | 1 | |||
Stock-based compensation expense | 4 | 4 | |||
Net income (loss) | 229 | 229 | |||
Ending Balance at Sep. 30, 2021 | 13,006 | $ 339 | 2,040 | 10,627 | 0 |
Ending Balance, Shares at Sep. 30, 2021 | 3,395,521 | ||||
Beginning Balance at Jun. 30, 2021 | 12,988 | $ 339 | 2,039 | 10,610 | 0 |
Beginning Balance, Shares at Jun. 30, 2021 | 3,395,521 | ||||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Stock-based compensation expense | 1 | 1 | |||
Net income (loss) | 17 | 17 | |||
Ending Balance at Sep. 30, 2021 | $ 13,006 | $ 339 | $ 2,040 | $ 10,627 | $ 0 |
Ending Balance, Shares at Sep. 30, 2021 | 3,395,521 |
Condensed Statements Of Cash Fl
Condensed Statements Of Cash Flows - USD ($) $ in Thousands | 9 Months Ended | |
Sep. 30, 2021 | Sep. 30, 2020 | |
Cash flows from operating activities | ||
Net income (loss) | $ 229 | $ (119) |
Adjustments to reconcile net income (loss) to net cash from operating activities: | ||
Depreciation and amortization | 254 | 272 |
Deferred income taxes | (24) | (24) |
Stock-based compensation expense | 4 | 5 |
Interest accrued on treasury bills | (2) | (2) |
Loss on investments | 0 | 3 |
Loss on disposal of fixed assets | 8 | 0 |
Change in: | ||
Trade receivables | (368) | (3) |
Inventories | 95 | 36 |
Other current assets | (37) | (37) |
Accounts payable | (22) | 52 |
Accrued expenses | 299 | 142 |
Income tax receivable/payable | 111 | (23) |
Net cash from operating activities | 547 | 302 |
Cash flows from (used in) investing activities | ||
Purchases of treasury bills | (10,999) | (7,747) |
Proceeds from the maturity of treasury bills | 14,000 | 5,750 |
Purchase of property and equipment | (14) | (24) |
Net cash from (used in) investing activities | 2,987 | (2,021) |
Cash flows used in financing activities | ||
Payments on financing lease | (4) | (4) |
Proceeds from Paycheck Protection Program | 0 | 645 |
Repayment of Paycheck Protection Program loan | 0 | (645) |
Net cash used in financing activities | (4) | (4) |
Net increase (decrease) in cash and cash equivalents | 3,530 | (1,723) |
Cash and cash equivalents, beginning | 1,090 | 8,785 |
Cash and cash equivalents, ending | 4,620 | 7,062 |
Supplemental cash flow information | ||
Cash paid for income taxes | 1 | 20 |
Cash paid for interest | $ 1 | $ 3 |
Basis of Presentation
Basis of Presentation | 9 Months Ended |
Sep. 30, 2021 | |
Basis of Presentation [Abstract] | |
Basis of Presentation | Note 1 asis of Pr The accompanying unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions and regulations of the Securities and Exchange Commission to Form 10-Q. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. This report should be read together with the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, including the audited financial statements and footnotes therein. Management believes that the unaudited financial statements include all adjustments, consisting of normal recurring accruals, necessary to fairly state the financial position and results of operations as of September 30, 2021 and for the three and nine-month periods ended September 30, 2021 and 2020, in accordance with accounting principles generally accepted in the United States of America. The results of interim periods may not be indicative of results to be expected for the year. Nature of Business Electro-Sensors, Inc. manufactures and markets a complete line of monitoring and control systems for a wide range of industrial machine applications. The Company uses leading-edge technology to continuously improve its products, with the ultimate goal of manufacturing the industry-preferred product for each of our served markets. The Company sells these products through an internal sales staff, manufacturers’ representatives, and distributors to a wide range of industries that use the products in a variety of applications to monitor process machinery operations. The Company markets its products to customers located throughout the United States, Canada, Latin America, Europe, and Asia. Re venue Rec At contract inception, the Company assesses the goods and services to be provided to a customer and identifies a performance obligation for each distinct good or service. We also determine the transaction price for each performance obligation at contract inception. Our contracts, generally in the form of a purchase order, specify the product or service that is to be provided to the customer. The typical contract life is less than one TM Fair Value Measurements The carrying value of trade receivables, accounts payable, and other financial working capital items approximates fair value at September 30, 2021 and December 31, 2020, due to the short maturity nature of these instruments. Intangibles Intangible assets are comprised of the HazardPRO technology and a technology license. The Company amortizes the cost of these intangible assets on a straight-line method over their estimated useful lives. Stock-Based Compensation The Company records compensation expense for stock options based on the estimated fair value of the options on the date of grant using the Black-Scholes-Merton (“BSM”) option pricing model. The Company uses historical data, among other factors, to estimate the expected price volatility, the expected option life, and the expected forfeiture rate. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for the estimated life of the option. As of , there wa s approximat of unrecognized compensation expense related to unvested stock options. The Company expects to recognize this expense over . Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Current significant estimates, including the underlying assumptions, consist of economic lives of long-lived assets, realizability of trade receivables, valuation of deferred tax assets/liabilities, inventory, investments, stock compensation expense, and the potential estimated impact on operations resulting from the COVID-19 pandemic as it relates to potential disruptions to our supply chain and customer demand. It is at least reasonably possible that these estimates may change in the near term Net Income (Loss) per Common Share Ba sic net income (loss) per common share reflects the potential dilution that could occur if securities such as options and other contracts to issue common stock were exercised or converted into common stock. D iluted income (loss) per common share is determined by dividing net income (loss) attributable to common stockholders by the weighted-average common shares outstanding during the period. Diluted earnings per share ("Diluted EPS") considers the impact of potentially dilutive securities except in periods in which there is a loss because the inclusion of the potential common shares would have an anti-dilutive effect. Diluted EPS also excludes the impact of common shares issuable upon exercise of outstanding stock options in periods in which the option exercise price is greater than the average market price of our common stock during the period. For the three -month 332,500, respectively, weighted average common shares for underlying stock options have been excluded from the calculation. For the nine -month respectively, common shares for underlying stock options have been excluded from the calculation. |
Investments
Investments | 9 Months Ended |
Sep. 30, 2021 | |
Investments [Abstract] | |
Investments | N ote 2 . Investments The Company has investments in commercial paper, Treasury Bills, and common equity securities of a private U.S. company. The commercial paper investment is in U.S. debt with ratings of A-1+, P-1, and F1+. The Treasury Bills have remaining terms rang ing from The Company classifies its investments in commercial paper and Treasury Bills as available-for-sale, accounted for at fair value with unrealized gains and losses recognized in accumulated other comprehensive gain on the balance sheet. The cost and estimated fair value of the Company’s investments are as follows: Cost Gross unrealized gain Gross u nrealize loss Fair value September 30, 2021 Com mercial $ 1,420 $ 0 $ 0 $ 1,420 Treasury Bills 7,999 0 0 7,999 E q uity Secu 54 0 (12 ) 42 9,473 0 (12 ) 9,461 Less Cash Equivalents 4,420 0 0 4,420 Total Investments, September 30, 2021 $ 5,053 $ 0 $ (12 ) $ 5,041 December 31, 2020 Commercial Paper $ 718 $ 0 $ 0 $ 718 Treasury Bills 7,998 1 0 7,999 Equity Securities 54 0 (12 ) 42 8,770 1 (12 ) 8,759 Less Cash Equivalents 718 0 0 718 Total Investments, December 31, 2020 $ 8,052 $ 1 $ (12 ) $ 8,041 |
Fair Value Measurements
Fair Value Measurements | 9 Months Ended |
Sep. 30, 2021 | |
Fair Value Measurements [Abstract] | |
Fair Value Measurements | Note 3 The following ta ble provides info September 30, 2021 Carrying amount Fair Value Measurement Using in balance sheet Fair Value Level 1 Level 2 Level 3 Assets: Cash equivalents Commercial paper $ 1,420 $ 1,420 $ 1,420 $ 0 $ 0 Treasury bills 3,000 3,000 3,000 0 0 Treasury bills 4,999 4,999 4,999 0 0 Equity Securities 42 42 0 0 42 December 31, 2020 Carrying amount Fair Value Measurement Using in balance sheet Fair Value Level 1 Level 2 Level 3 Assets: Cash equivalents Commercial paper $ 718 $ 718 $ 718 $ 0 $ 0 Treasury bills 7,999 7,999 7,999 0 0 Equity Securities 42 42 0 0 42 The fair value of the commercial paper and treasury bills is based on quoted market prices in an active market. The equity securities owned by the Company are investments in two non-publicly traded companies. There is an undeterminable market for each of these two companies and the Company has determined the fair value based on financial and other factors that are considered level 3 The changes measured at ue on a recur ring sis are Nine Months Ended September 30, 2021 2020 Beginning Balance $ 42 $ 45 Change in Fair Value 0 (3 ) E nding B $ 42 $ 42 |
Inventories
Inventories | 9 Months Ended |
Sep. 30, 2021 | |
Inventories [Abstract] | |
Inventories | Note 4 Inven tories use tion of cost of go September 30, 2021 December 31, 2020 Raw Materials $ 921 $ 922 Work In Process 257 292 Finished Goods 304 363 Reserve for Obsolescence (5 ) (5 ) Total Inventories, net $ 1,477 $ 1,572 |
Basis of Presentation (Policy)
Basis of Presentation (Policy) | 9 Months Ended |
Sep. 30, 2021 | |
Basis of Presentation [Abstract] | |
Nature of Business | Nature of Business Electro-Sensors, Inc. manufactures and markets a complete line of monitoring and control systems for a wide range of industrial machine applications. The Company uses leading-edge technology to continuously improve its products, with the ultimate goal of manufacturing the industry-preferred product for each of our served markets. The Company sells these products through an internal sales staff, manufacturers’ representatives, and distributors to a wide range of industries that use the products in a variety of applications to monitor process machinery operations. The Company markets its products to customers located throughout the United States, Canada, Latin America, Europe, and Asia. |
Revenue Recognition | Re venue Rec At contract inception, the Company assesses the goods and services to be provided to a customer and identifies a performance obligation for each distinct good or service. We also determine the transaction price for each performance obligation at contract inception. Our contracts, generally in the form of a purchase order, specify the product or service that is to be provided to the customer. The typical contract life is less than one TM |
Fair Value Measurements | Fair Value Measurements The carrying value of trade receivables, accounts payable, and other financial working capital items approximates fair value at September 30, 2021 and December 31, 2020, due to the short maturity nature of these instruments. |
Intangibles | Intangibles Intangible assets are comprised of the HazardPRO technology and a technology license. The Company amortizes the cost of these intangible assets on a straight-line method over their estimated useful lives. |
Stock-Based Compensation | Stock-Based Compensation The Company records compensation expense for stock options based on the estimated fair value of the options on the date of grant using the Black-Scholes-Merton (“BSM”) option pricing model. The Company uses historical data, among other factors, to estimate the expected price volatility, the expected option life, and the expected forfeiture rate. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for the estimated life of the option. As of , there wa s approximat of unrecognized compensation expense related to unvested stock options. The Company expects to recognize this expense over . |
Use of Estimates | Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Current significant estimates, including the underlying assumptions, consist of economic lives of long-lived assets, realizability of trade receivables, valuation of deferred tax assets/liabilities, inventory, investments, stock compensation expense, and the potential estimated impact on operations resulting from the COVID-19 pandemic as it relates to potential disruptions to our supply chain and customer demand. It is at least reasonably possible that these estimates may change in the near term |
Net Income (Loss) per Common Share | Net Income (Loss) per Common Share Ba sic net income (loss) per common share reflects the potential dilution that could occur if securities such as options and other contracts to issue common stock were exercised or converted into common stock. D iluted income (loss) per common share is determined by dividing net income (loss) attributable to common stockholders by the weighted-average common shares outstanding during the period. Diluted earnings per share ("Diluted EPS") considers the impact of potentially dilutive securities except in periods in which there is a loss because the inclusion of the potential common shares would have an anti-dilutive effect. Diluted EPS also excludes the impact of common shares issuable upon exercise of outstanding stock options in periods in which the option exercise price is greater than the average market price of our common stock during the period. For the three -month 332,500, respectively, weighted average common shares for underlying stock options have been excluded from the calculation. For the nine -month respectively, common shares for underlying stock options have been excluded from the calculation. |
Investments (Tables)
Investments (Tables) | 9 Months Ended |
Sep. 30, 2021 | |
Investments [Abstract] | |
Cost And Estimated Fair Value Of Investments | Cost Gross unrealized gain Gross u nrealize loss Fair value September 30, 2021 Com mercial $ 1,420 $ 0 $ 0 $ 1,420 Treasury Bills 7,999 0 0 7,999 E q uity Secu 54 0 (12 ) 42 9,473 0 (12 ) 9,461 Less Cash Equivalents 4,420 0 0 4,420 Total Investments, September 30, 2021 $ 5,053 $ 0 $ (12 ) $ 5,041 December 31, 2020 Commercial Paper $ 718 $ 0 $ 0 $ 718 Treasury Bills 7,998 1 0 7,999 Equity Securities 54 0 (12 ) 42 8,770 1 (12 ) 8,759 Less Cash Equivalents 718 0 0 718 Total Investments, December 31, 2020 $ 8,052 $ 1 $ (12 ) $ 8,041 |
Fair Value Measurements (Tables
Fair Value Measurements (Tables) | 9 Months Ended |
Sep. 30, 2021 | |
Fair Value Measurements [Abstract] | |
Schedule of fair value measurement on a recurring basis | September 30, 2021 Carrying amount Fair Value Measurement Using in balance sheet Fair Value Level 1 Level 2 Level 3 Assets: Cash equivalents Commercial paper $ 1,420 $ 1,420 $ 1,420 $ 0 $ 0 Treasury bills 3,000 3,000 3,000 0 0 Treasury bills 4,999 4,999 4,999 0 0 Equity Securities 42 42 0 0 42 December 31, 2020 Carrying amount Fair Value Measurement Using in balance sheet Fair Value Level 1 Level 2 Level 3 Assets: Cash equivalents Commercial paper $ 718 $ 718 $ 718 $ 0 $ 0 Treasury bills 7,999 7,999 7,999 0 0 Equity Securities 42 42 0 0 42 |
Summary of change in level 3 assets at fair value on a recurring basis | Nine Months Ended September 30, 2021 2020 Beginning Balance $ 42 $ 45 Change in Fair Value 0 (3 ) E nding B $ 42 $ 42 |
Inventories (Tables)
Inventories (Tables) | 9 Months Ended |
Sep. 30, 2021 | |
Inventories [Abstract] | |
Schedule of Inventories used in the determination of cost of goods sold | September 30, 2021 December 31, 2020 Raw Materials $ 921 $ 922 Work In Process 257 292 Finished Goods 304 363 Reserve for Obsolescence (5 ) (5 ) Total Inventories, net $ 1,477 $ 1,572 |
Basis of Presentation (Narrativ
Basis of Presentation (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | |
Basis of Presentation [Abstract] | ||||
Unrecognized compensation expense related to unvested stock options | $ 5 | $ 5 | ||
Number of years to recognize remaining expense | 1 year | |||
Options excluded from the computations of diluted weighted-average shares outstanding | 288,644 | 332,500 | 292,426 | 332,500 |
Investments (Narrative) (Detail
Investments (Narrative) (Details) | 9 Months Ended |
Sep. 30, 2021 | |
Minimum [Member] | |
Schedule of Available-for-sale Securities [Line Items] | |
Treasury Bills, term | 1 month |
Maximum [Member] | |
Schedule of Available-for-sale Securities [Line Items] | |
Treasury Bills, term | 5 months |
Investments (Cost And Estimated
Investments (Cost And Estimated Fair Value Of Investments) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Dec. 31, 2019 |
Schedule of Available-for-sale Securities [Line Items] | ||||
Cost | $ 5,053 | $ 8,052 | ||
Gross unrealized gain | 0 | 1 | ||
Gross unrealized loss | (12) | (12) | ||
Fair value, investments | 5,041 | 8,041 | ||
Cash equivalents, Carrying amount | 4,620 | 1,090 | $ 7,062 | $ 8,785 |
Commercial Paper [Member] | ||||
Schedule of Available-for-sale Securities [Line Items] | ||||
Cost | 1,420 | 718 | ||
Gross unrealized gain | 0 | 0 | ||
Gross unrealized loss | 0 | 0 | ||
Fair value, investments | 1,420 | 718 | ||
Treasury Bills [Member] | ||||
Schedule of Available-for-sale Securities [Line Items] | ||||
Cost | 7,999 | 7,998 | ||
Gross unrealized gain | 0 | 1 | ||
Gross unrealized loss | 0 | 0 | ||
Fair value, investments | 7,999 | 7,999 | ||
Equity Securities [Member] | ||||
Schedule of Available-for-sale Securities [Line Items] | ||||
Cost | 54 | 54 | ||
Gross unrealized gain | 0 | 0 | ||
Gross unrealized loss | (12) | (12) | ||
Fair value, investments | 42 | 42 | ||
Debt and Equity Securities [Member] | ||||
Schedule of Available-for-sale Securities [Line Items] | ||||
Cost | 9,473 | 8,770 | ||
Gross unrealized gain | 0 | 1 | ||
Gross unrealized loss | (12) | (12) | ||
Fair value, investments | 9,461 | 8,759 | ||
Less Cash Equivalents [Member] | ||||
Schedule of Available-for-sale Securities [Line Items] | ||||
Gross unrealized gain | 0 | 0 | ||
Gross unrealized loss | 0 | 0 | ||
Cash equivalents, Carrying amount | 4,420 | 718 | ||
Cash equivalents, Fair value | $ 4,420 | $ 718 |
Fair Value Measurements (Fair V
Fair Value Measurements (Fair Value Measurements On A Recurring Basis) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Dec. 31, 2019 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Carrying amount | $ 4,620 | $ 1,090 | $ 7,062 | $ 8,785 |
Equity Securities, Fair Value | 5,041 | 8,041 | ||
Commercial Paper [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Carrying amount | 1,420 | 718 | ||
Cash equivalents, Fair Value | 1,420 | 718 | ||
Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Fair Value | 1,420 | 718 | ||
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Fair Value | 0 | 0 | ||
Commercial Paper [Member] | Fair Value, Inputs, Level 3 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Fair Value | 0 | 0 | ||
Treasury Bills [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Carrying amount | 3,000 | |||
Cash equivalents, Fair Value | 3,000 | |||
Treasury bills, Carrying amount | 4,999 | 7,999 | ||
Treasury bills, Fair Value | 4,999 | 7,999 | ||
Treasury Bills [Member] | Fair Value, Inputs, Level 1 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Fair Value | 3,000 | |||
Treasury bills, Fair Value | 4,999 | 7,999 | ||
Treasury Bills [Member] | Fair Value, Inputs, Level 2 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Fair Value | 0 | |||
Treasury bills, Fair Value | 0 | 0 | ||
Treasury Bills [Member] | Fair Value, Inputs, Level 3 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash equivalents, Fair Value | 0 | |||
Treasury bills, Fair Value | 0 | 0 | ||
Limited Marketable Company [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Equity Securities, Carrying amount | 42 | 42 | ||
Equity Securities, Fair Value | 42 | 42 | ||
Limited Marketable Company [Member] | Fair Value, Inputs, Level 1 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Equity Securities, Fair Value | 0 | 0 | ||
Limited Marketable Company [Member] | Fair Value, Inputs, Level 2 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Equity Securities, Fair Value | 0 | 0 | ||
Limited Marketable Company [Member] | Fair Value, Inputs, Level 3 [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Equity Securities, Fair Value | $ 42 | $ 42 |
Fair Value Measurements (Fair_2
Fair Value Measurements (Fair Value Assets Measured on Recurring Basis Unobservable Inputs Reconciliation) (Details) - USD ($) $ in Thousands | 9 Months Ended | |
Sep. 30, 2021 | Sep. 30, 2020 | |
Assets measured at fair value on a recurring basis | ||
Beginning Balance | $ 42 | $ 45 |
Change in Fair Value | 0 | (3) |
Ending Balance | $ 42 | $ 42 |
Inventories (Details)
Inventories (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 |
Inventories [Abstract] | ||
Raw Materials | $ 921 | $ 922 |
Work In Process | 257 | 292 |
Finished Goods | 304 | 363 |
Reserve for Obsolescence | (5) | (5) |
Total Inventories | $ 1,477 | $ 1,572 |