XML 17 R1.htm IDEA: XBRL DOCUMENT v3.20.4
Document and Entity Information - USD ($)
 12 Months Ended
Sep. 30, 2020
Dec. 30, 2020
Mar. 31, 2020
Cover [Abstract]      
Entity Registrant Name CEMTREX INC    
Entity Central Index Key 0001435064    
Document Type 10-K    
Document Period End Date Sep. 30, 2020    
Amendment Flag false    
Current Fiscal Year End Date --09-30    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filer No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business Flag true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 5,132,162
Entity Common Stock, Shares Outstanding   17,968,177  
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2020