XML 52 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Document And Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
May 12, 2020
Jun. 28, 2019
Document Information [Line Items]      
Entity Registrant Name BIO KEY INTERNATIONAL INC    
Entity Central Index Key 0001019034    
Trading Symbol bkyi    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Entity Emerging Growth Company false    
Entity Small Business true    
Entity Interactive Data Current Yes    
Entity Common Stock, Shares Outstanding (in shares)   21,212,297  
Entity Public Float     $ 8.2
Entity Shell Company false    
Document Type 10-K    
Document Period End Date Dec. 31, 2019    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
Title of 12(b) Security Common Stock, par value $0.0001 per share