Line of Credit and Long-Term Debt - Components of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Long-term debt consists of:
Total short-term and long-term debt	$ 85,025	$ 74,215
Less: line-of-credit and current maturities of long-term debt	(14,346)	(815)
Less: deferred loan costs	(165)	(177)
Long-term debt, less current portion	70,514	73,223
Revolving line of credit
Long-term debt consists of:
Total short-term and long-term debt	11,000	0
Term Note
Long-term debt consists of:
Total short-term and long-term debt	70,000	70,000
Promissory note
Long-term debt consists of:
Total short-term and long-term debt	$ 4,025	$ 4,215