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Long-Term Debt - Swaps (Details)
3 Months Ended
Mar. 31, 2015
USD ($)
contract
Mar. 31, 2016
USD ($)
item
Dec. 31, 2015
USD ($)
Derivative Instrument Detail [Abstract]      
Derivative Number of Contracts | contract 3    
Derivative Liability, Notional Amount $ 1,293,000 $ (3,381,000)  
Interest Rate Derivative Liabilities, at Fair Value   3,381,000 $ 1,501,000
Derivative Liability, Current 88,000 379,000  
Derivative Liability, Noncurrent 1,205,000 $ 3,002,000  
Interest rate swap      
Derivative Instrument Detail [Abstract]      
Number of financial institutions for which the entity is exposed to counterparty credit risk | item   1  
Interest Rate Swap Effective 29 March 2018 through 31 March 2020 [Member]      
Derivative Instrument Detail [Abstract]      
Derivative Liability, Notional Amount 90,000,000    
Derivative, Fixed Interest Rate   6.916%  
Interest Rate Swap Effective 29 March 2018 through 31 March 2020 [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Derivative Instrument Detail [Abstract]      
Derivative, Basis Spread on Variable Rate   4.25%  
Derivative, Floor Interest Rate   1.00%  
Interest Rate Swap Effective 31 December 2015 through 29 March 2018 [Member]      
Derivative Instrument Detail [Abstract]      
Derivative Liability, Notional Amount 45,000,000    
Derivative, Fixed Interest Rate   6.105%  
Interest Rate Swap Effective 31 December 2015 through 29 March 2018 [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Derivative Instrument Detail [Abstract]      
Derivative, Basis Spread on Variable Rate   4.25%  
Derivative, Floor Interest Rate   1.00%  
Interest Rate Swap Effective 31 March 2020 through 30 June 2021 [Member]      
Derivative Instrument Detail [Abstract]      
Derivative Liability, Notional Amount $ 135,000,000    
Derivative, Fixed Interest Rate   7.168%  
Interest Rate Swap Effective 31 March 2020 through 30 June 2021 [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Derivative Instrument Detail [Abstract]      
Derivative, Basis Spread on Variable Rate   4.25%  
Derivative, Floor Interest Rate   1.00%