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Long-Term Debt (Schedule of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Total debt $ 75,440 $ 73,582
Less: current portion of long-term debt (4,654) (4,579)
Less: deferred financing costs (941) (1,005)
Long-term debt 69,845 67,998
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Total debt 29,688 26,546
Convertible Notes [Member]    
Debt Instrument [Line Items]    
Total debt 19,000 19,000
Term Loan [Member]    
Debt Instrument [Line Items]    
Total debt 24,757 26,273
Capital Leases [Member]    
Debt Instrument [Line Items]    
Total debt $ 1,995 $ 1,763