v3.26.3
Document And Entity Information
 6 Months Ended
Jun. 30, 2026
Document Information [Line Items]  
Document Type S-1/A
Entity Registrant Name BIO-key International, Inc.
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 07733
City Area Code 732
Local Phone Number 359-1100
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company false
Amendment Description The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date
Entity Central Index Key 0001019034
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Amendment Flag true