Line of Credit and Long-Term Debt - Components of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Long-term debt consists of:
Total short-term and long-term debt	$ 63,914	$ 65,915
Less: line-of-credit and current maturities of long-term debt	(4,093)	(4,018)
Less: deferred loan costs	(163)	(117)
Long-term debt, less current portion	59,658	61,780
Notes payable
Long-term debt consists of:
Total short-term and long-term debt	63,914	65,901
Other borrowings
Long-term debt consists of:
Total short-term and long-term debt	$ 0	$ 14