Income Tax - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Computed at the statutory rate (21%)	$ 1,996	$ 2,725	$ 1,141	$ 7,241
Increase (decrease) resulting from
Tax-exempt income	(766)	(722)	(2,335)	(2,147)
Nondeductible expenses	21	71	119	208
State tax credit	0	0	0	(1,361)
State income taxes	320	566	501	1,526
Equity based compensation	(15)	(5)	24	(66)
Goodwill impairment	0	0	1,553	0
Other adjustments	(58)	(43)	(75)	(93)
Income tax expense	$ 1,498	$ 2,592	$ 928	$ 5,308