v2.4.0.6
Document and Entity Information
6 Months Ended
Mar. 31, 2013
May 03, 2013
Document and Entity Information [Abstract]    
Entity Registrant Name MITEK SYSTEMS INC  
Entity Central Index Key 0000807863  
Document Type 10-Q  
Document Period End Date Mar. 31, 2013  
Amendment Flag false  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --09-30  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   27,044,039