Long-Term Debt - Summary of Long Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total debt	$ 14,297	$ 11,191
Less: Current portion of long-term debt	(1,604)
Long-term debt	12,693	11,191
Promissory Note [Member]
Debt Instrument [Line Items]
Total debt	4,297
Less: Current portion of long-term debt	(1,600)
Long-term debt	4,300
Credit Agreement [Member]
Debt Instrument [Line Items]
Total debt	10,000	$ 11,191
Long-term debt	$ 10,000