v2.4.0.8
Document And Entity Information (USD $)
12 Months Ended
Jan. 31, 2014
Apr. 15, 2014
Jul. 31, 2013
Document and Entity Information [Abstract]      
Entity Registrant Name COMARCO INC    
Document Type 10-K    
Current Fiscal Year End Date --01-31    
Entity Common Stock, Shares Outstanding   14,684,165  
Entity Public Float     $ 2,300,000
Amendment Flag false    
Entity Central Index Key 0000022252    
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 Jan. 31, 2014    
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus FY