Income Taxes, Components of Provision for Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current [Abstract]
Federal	$ 3,056	$ 3,654	$ 4,611
State	2,164	2,300	1,788
Current income tax expense	5,220	5,954	6,399
Deferred [Abstract]
Federal	472	(711)	1,914
State	(22)	(499)	5
Deferred income tax expense	450	(1,210)	1,919
Total income tax expense	$ 5,670	$ 4,744	$ 8,318