Line of Credit and Long-Term Debt - Components of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Long-term debt consists of:
Total short-term and long-term debt	$ 88,929	$ 81,567
Less: line-of-credit and current maturities of long-term debt	(19,868)	(11,553)
Less: deferred loan costs	(156)	(161)
Long-term debt, less current portion	68,905	69,853
Revolving line of credit
Long-term debt consists of:
Total short-term and long-term debt	16,000	7,700
Notes payable
Long-term debt consists of:
Total short-term and long-term debt	72,494	73,400
Other borrowings
Long-term debt consists of:
Total short-term and long-term debt	$ 435	$ 467