Line of Credit and Long-term Debt - Components of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt consists of:
Notes payable	$ 65,901	$ 69,741
Other borrowings	14	218
Total short-term and long-term debt	65,915	69,959
Less line-of-credit and current maturities of long-term debt	(4,018)	(4,004)
Less deferred loan costs	(117)	(139)
Long-term debt, less current portion	$ 61,780	$ 65,816