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Long-Term Debt (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 18, 2015
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Debt Instrument [Line Items]            
Secured Debt   $ 1,100,000   $ 1,100,000    
Long-term Debt, Total   36,365,000   36,365,000   $ 36,365,000
Write off of Deferred Debt Issuance Cost   $ 0 $ 557,000 0 $ 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%   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   0.5625%   0.5625%    
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   35,287,000
Line of Credit Facility, Remaining Borrowing Capacity   65,000,000   $ 65,000,000    
Long-term Debt, Maturities, Repayment Terms 5          
Revolving credit facility [Member] | Two Thousand Eighteen Matuirity Debt [Member]            
Debt Instrument [Line Items]            
Debt Instrument, Maturity Date       May 31, 2018    
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   $ 1,078,000