Line of Credit and Long-term Debt - Components of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt consists of:
Notes payable	$ 61,897	$ 65,901
Other borrowings	0	14
Total short-term and long-term debt	61,897	65,915
Less line-of-credit and current maturities of long-term debt	(4,182)	(4,018)
Less deferred loan costs	(239)	(117)
Long-term debt, less current portion	$ 57,476	$ 61,780