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Long-Term Debt (Details Textual) - USD ($)
1 Months Ended 6 Months Ended
Aug. 18, 2015
Jun. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]      
Secured Debt   $ 1,100,000  
Long-term Debt, Total   36,365,000 $ 36,365,000
Write off of Deferred Debt Issuance Cost   557,000  
Amortization of Acquisition Costs   $ 266,000  
London Interbank Offered Rate (LIBOR) [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Effective Percentage   0.25%  
Maximum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Commitment Fee Percentage   0.30%  
Maximum [Member] | Base Rate [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   1.00%  
Minimum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Commitment Fee Percentage   0.20%  
Minimum [Member] | Base Rate [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   0.00%  
Libor Rate [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Effective Percentage   0.50%  
Libor Rate [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   2.00%  
Libor Rate [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate   1.00%  
Revolving credit facility [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Maturity Date Aug. 18, 2020    
Long-term Debt, Total $ 100,000,000 $ 35,287,000 35,287,000
Line of Credit Facility, Remaining Borrowing Capacity   $ 65,000,000  
Long-term Debt, Maturities, Repayment Terms five-year    
Secured Debt [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Maturity Date   May 01, 2017  
Term Loan Maturity Period   3 years  
Long-term Debt, Total   $ 1,078,000 $ 1,078,000