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Notes - Additional Information (Detail) - USD ($)
1 Months Ended
Apr. 13, 2015
Jul. 31, 2014
Jun. 30, 2015
Jun. 29, 2015
Jun. 30, 2014
Line of Credit Facility [Line Items]          
Investment amount outstanding     $ 0   $ 0
Investment related liability     0    
Line of credit facility, borrowing     $ 250,000    
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       $ 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%