Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

v3.20.2
Document And Entity Information - USD ($)
12 Months Ended
Jul. 31, 2020
Oct. 12, 2020
Jan. 31, 2020
Document Information Line Items      
Entity Registrant Name ENZO BIOCHEM INC    
Document Type 10-K    
Current Fiscal Year End Date --07-31    
Entity Common Stock, Shares Outstanding   47,895,050  
Entity Public Float     $ 110,441,000
Amendment Flag false    
Entity Central Index Key 0000316253    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date Jul. 31, 2020    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity File Number 001-09974    
Entity Incorporation, State or Country Code NY    
Entity Interactive Data Current Yes