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Note and Line of Credit - Additional Information (Detail) - USD ($)
1 Months Ended
Apr. 13, 2015
Jul. 31, 2014
Sep. 30, 2015
Sep. 29, 2015
Jun. 29, 2015
Sep. 30, 2014
Line of Credit Facility [Line Items]            
Letter of credit and related promissory note     $ 200,000      
Investment amount outstanding     0     $ 0
Investment related liability     $ 0      
Libertyville Bank and Trust Company [Member]            
Line of Credit Facility [Line Items]            
Line of credit facility, maximum borrowing capacity $ 300,000          
Line of credit facility maximum borrowing capacity as percentage of accounts receivable 75.00%          
Minimum amount of cash required on advances $ 1,000,000          
Line of credit facility repayment period 5 days          
Line of credit facility, expiration date Mar. 04, 2016          
Line of credit facility, borrowing       $ 200,000 $ 250,000  
Libertyville Bank and Trust Company [Member] | Prime Rate [Member]            
Line of Credit Facility [Line Items]            
Variable interest rate 1.00%          
Letter of Credit [Member]            
Line of Credit Facility [Line Items]            
Letter of credit and related promissory note   $ 30,000        
Borrowings incurred   $ 0        
Interest rate   1.00%