Long-Term Debt (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total debt	$ 72,683	$ 77,137
Less: current portion of long-term debt	(4,564)	(3,000)
Less: deferred financing costs	(1,083)	(1,253)
Long-term debt	67,036	72,884
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total debt	23,369	44,350
Convertible Notes [Member]
Debt Instrument [Line Items]
Total debt	19,000	20,000
Term Loan [Member]
Debt Instrument [Line Items]
Total debt	28,416	12,500
Swing Loan Credit Facility [Member]
Debt Instrument [Line Items]
Total debt		$ 287
Capital Leases [Member]
Debt Instrument [Line Items]
Total debt	$ 1,898