Line of Credit - Additional Information (Detail) (USD $)
12 Months Ended 0 Months Ended
Dec. 31, 2014
Mar. 27, 2014
Dec. 05, 2014
Line of Credit Facility [Line Items]      
Line of credit facility, maximum borrowing capacity   2,000,000 $ 4,000,000
Line of credit facility, interest rate description Borrowings under the Credit Facility bear interest based on the face amount of the financed receivables at the prime rate plus 4.5% for domestic receivables and 3.53% for foreign receivables.    
Amounts drawn against the Credit Facility 2,700,000    
Line of credit facility expiry date Sep. 27, 2015    
Line of credit facility available $ 1,300,000    
Line of credit facility covenant term Through March 31, 2015    
Domestic receivables [Member]      
Line of Credit Facility [Line Items]      
Eligible accounts receivable, advance rate   80.00%  
Domestic receivables [Member] | Prime rate [Member]      
Line of Credit Facility [Line Items]      
Credit Facility interest rate   4.50%  
Foreign receivables [Member]      
Line of Credit Facility [Line Items]      
Eligible accounts receivable, advance rate   70.00%  
Foreign receivables [Member] | Prime rate [Member]      
Line of Credit Facility [Line Items]      
Credit Facility interest rate   3.53%