Document And Entity Information
Document And Entity Information - USD ($) | 12 Months Ended | ||
Dec. 31, 2021 | Apr. 13, 2022 | Jun. 30, 2021 | |
Document And Entity Information [Abstract] | |||
Document Type | 10-K/A | ||
Document Annual Report | true | ||
Document Fiscal Period Focus | FY | ||
Document Period End Date | Dec. 31, 2021 | ||
Document Transition Report | false | ||
Entity File Number | 001-34261 | ||
Entity Registrant Name | EVOLVING SYSTEMS, INC. | ||
Entity Incorporation, State or Country Code | DE | ||
Entity Tax Identification Number | 84-1010843 | ||
Entity Address, Address Line One | 9800 Pyramid Court | ||
Entity Address, Address Line Two | Suite 400 | ||
Entity Address, City or Town | Englewood | ||
Entity Address, State or Province | CO | ||
Entity Address, Postal Zip Code | 80112 | ||
City Area Code | 303 | ||
Local Phone Number | 802-1000 | ||
Title of 12(b) Security | Common Stock, par value $0.001 per share | ||
Trading Symbol | EVOL | ||
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 | false | ||
ICFR Auditor Attestation Flag | false | ||
Entity Shell Company | false | ||
Entity Public Float | $ 17,570,711 | ||
Entity Common Stock, Shares Outstanding | 12,333,184 | ||
Entity Central Index Key | 0001052054 | ||
Current Fiscal Year End Date | --12-31 | ||
Document Fiscal Year Focus | 2021 | ||
Amendment Flag | false | ||
Auditor Name | Marcum LLP | ||
Auditor Firm ID | 688 | ||
Auditor Location | Philadelphia, PA | ||
Amendment Description | Amendment No. 1 |