Annual report pursuant to section 13 and 15(d)

Document And Entity Information

Document And Entity Information (USD $)
12 Months Ended
Oct. 31, 2012
Jan. 22, 2013
Apr. 30, 2012
Document and Entity Information [Abstract]      
Entity Registrant Name COPYTELE INC    
Document Type 10-K    
Current Fiscal Year End Date --10-31    
Entity Common Stock, Shares Outstanding   185,104,037  
Entity Public Float     $ 25,224,809
Amendment Flag false    
Entity Central Index Key 0000715446    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Smaller Reporting Company    
Entity Well-known Seasoned Issuer No    
Document Period End Date Oct. 31, 2012    
Document Fiscal Year Focus 2012    
Document Fiscal Period Focus FY