| Document And Entity Information - USD ($) | 12 Months Ended | ||
| Dec. 31, 2023 | Jun. 04, 2024 | Jun. 30, 2023 | |
| Document Information [Line Items] | |||
| Entity, Registrant Name | BIO-KEY INTERNATIONAL, INC. | ||
| Current Fiscal Year End Date | --12-31 | ||
| Document, Fiscal Period Focus | FY | ||
| Document, Fiscal Year Focus | 2023 | ||
| Document, Type | 10-K/A | ||
| Document, Annual Report | true | ||
| Document, Period End Date | Dec. 31, 2023 | ||
| Document, Transition Report | false | ||
| Entity, File Number | 1-13463 | ||
| Entity, Incorporation, State or Country Code | DE | ||
| Entity, Tax Identification Number | 41-1741861 | ||
| Entity, Address, Address Line One | 101 CRAWFORDS CORNER ROAD, SUITE 4116 | ||
| Entity, Address, City or Town | HOLMDEL | ||
| Entity, Address, State or Province | NJ | ||
| Entity, Address, Postal Zip Code | 07753 | ||
| City Area Code | 732 | ||
| Local Phone Number | 359-1100 | ||
| Title of 12(b) Security | Common Stock, $0.0001 par value per share | ||
| Trading Symbol | BKYI | ||
| 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 | ||
| Document, Financial Statement Error Correction Flag | false | ||
| Entity, Shell Company | false | ||
| Entity, Public Float | $ 6,303,798 | ||
| Entity, Common Stock Shares, Outstanding | 1,814,228 | ||
| Amendment Description | This Amendment No. 1 (the “Amendment No. 1”) to the Annual Report on Form 10-K of BIO-key International, Inc. (the “Company”) for the year ended December 31, 2023, originally filed with the Securities and Exchange Commission on June 5, 2024, is being filed solely to correct a typographical error in the report of Marcum LLP, the Company’s independent auditor for the fiscal year ended December 31, 2022. The typographical error that was corrected concerns the date of the Auditor’s Report of Marcum LLP, which referenced June 5, 2024 instead of June 1, 2023 due to an inadvertent oversight in the EDGAR preparation process. Pursuant to Rule 12b-15 promulgated under the Securities Exchange Act of 1934, as amended, we have repeated the entire text of Item 8 of the Form 10-K in this Amendment No. 1. However, there have been no changes to the text of such item other than the change in the date of the Auditor’s Report of Marcum LLP. The Company is including in this Amendment No. 1 currently dated certifications from its Chief Executive Officer and Chief Financial Officer as required by Sections 302 and 906 of the Sarbanes-Oxley Act of 2002 as Exhibits 31.1 and 31.2 and Exhibits 32.1 and 32.2, respectively. As a result, Item 15 “Exhibits and Financial Statement Schedules” has also been modified. Except as expressly set forth above, this Amendment No. 1 speaks as of the original filing date of the Form 10-K, and does not reflect events that may have occurred subsequent to that date, nor does it modify or update in any way disclosure made in the original Form 10-K. | ||
| Auditor Firm ID | 6797 | ||
| Auditor Name | Bush & Associates CPA LLC | ||
| Auditor Location | Henderson, Nevada | ||
| Amendment Flag | true | ||
| Entity, Central Index Key | 0001019034 |
