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Business Combination - Additional Information (Detail) - USD ($)
 12 Months Ended
Jun. 17, 2015
Sep. 30, 2015
Sep. 30, 2014
Business Acquisition [Line Items]      
Common stock, par value   $ 0.001 $ 0.001
Acquisition-related costs and expenses   $ 1,368,100  
Goodwill   2,872,677 $ 0
Maximum [Member]      
Business Acquisition [Line Items]      
Business combination, escrow fund period 24 months    
ID Checker [Member]      
Business Acquisition [Line Items]      
Acquisition date Jun. 17, 2015    
Total consideration paid $ 5,855,000    
Payments to acquire businesses, gross 5,600,000    
Common stock issued during acquisition, value $ 2,745,000    
Common stock, par value $ 0.001    
Business combination consideration transfer, promissory notes $ 255,000    
Cash payment to escrow fund related to business acquisition $ 1,820,000    
Business combination, percentage of closing shares in escrow fund 20.00%    
Goodwill $ 2,872,677    
ID Checker [Member] | Closing Shares [Member]      
Business Acquisition [Line Items]      
Common stock issued during acquisition, share 712,790    
ID Checker [Member] | Maximum [Member]      
Business Acquisition [Line Items]      
Business combination, Earnout shares $ 2,000,000 $ 2,000,000