Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
12 Months Ended
Jul. 31, 2022
Nov. 23, 2022
Jan. 31, 2022
Document Information Line Items      
Entity Registrant Name Enzo Biochem, Inc.    
Trading Symbol ENZ    
Document Type 10-K/A    
Current Fiscal Year End Date --07-31    
Entity Common Stock, Shares Outstanding   48,720,454  
Entity Public Float     $ 131,825,000
Amendment Flag true    
Amendment Description Enzo Biochem, Inc. (the “Company”) is filing this Amendment No. 1 to Form 10-K on Form 10-K/A for the fiscal year ended July 31, 2022, in order to amend and restate Part III, Items 10 through 14 of the report on Form 10-K (the “original 10-K”) that we originally filed with the Securities and Exchange Commission (the “SEC”) on October 14, 2022.This Form 10-K/A has been prepared and filed in reliance on General Instruction G to Form 10-K, which provides that registrants may provide the information required by Part III in a definitive proxy statement or an amendment to the Form 10-K filed with the SEC within 120 days after the end of the fiscal year covered by the report. The Company had initially planned to file the Part III information in a definitive proxy statement.The original Form 10-K is therefore amended to (i) delete the reference on the cover of the original Form 10-K to the incorporation by reference of a definitive proxy statement into Part III of such Form 10-K and (ii) revise Part III, Items 10 through 14 of the Company’s original Form 10-K to include information previously omitted from the original Form 10-K.Except as described above, no other changes have been made to the original Form 10-K. The original Form 10-K continues to speak as of October 14, 2022, the date the Company filed the original Form 10-K with the SEC, and other than as expressly indicated in the original Form 10-K or in this Form 10-K/A, the Company has not updated the disclosures contained therein to reflect any events that have occurred at a date subsequent to October 14, 2022.  Accordingly, this Form 10-K/A should be read in conjunction with the original Form 10-K and the Company’s other reports filed thereafter.    
Entity Central Index Key 0000316253    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date Jul. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
ICFR Auditor Attestation Flag true    
Document Annual Report true    
Document Transition Report false    
Entity File Number 001-09974    
Entity Incorporation, State or Country Code NY    
Entity Tax Identification Number 13-2866202    
Entity Address, Address Line One 81 Executive Blvd    
Entity Address, Address Line Two Suite 3 Farmingdale    
Entity Address, State or Province NY    
Entity Address, City or Town NY    
Entity Address, Postal Zip Code 11735    
City Area Code (631)    
Local Phone Number 755-5500    
Title of 12(b) Security Common Stock, $.01 par value    
Security Exchange Name NYSE    
Entity Interactive Data Current Yes    
Auditor Firm ID 274    
Auditor Name EisnerAmper LLP    
Auditor Location New York, New York