Long-Term Debt - Summary of Long Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Total debt	$ 13,906	$ 14,297
Less: Current portion of long-term debt	(1,634)	(1,604)
Long-term debt	12,272	12,693
Promissory Note [Member]
Debt Instrument [Line Items]
Total debt	3,906	4,297
Less: Current portion of long-term debt	(1,600)
Long-term debt	3,900
Credit Agreement [Member]
Debt Instrument [Line Items]
Total debt	10,000	$ 10,000
Long-term debt	$ 10,000