Parent Company Financial Statements (Statements of Income and Comprehensive Income - Parent Company) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Expenses
Interest on borrowed funds	$ 530	$ 353
Interest on subordinated notes	635	250
Income tax benefit	(349)	(747)	$ (747)
Net income	4,110	3,467
Other comprehensive income	1,777	2,069
Total comprehensive income, net of tax	5,887	5,536
Parent Company
Income
Dividend income from bank subsidiary	36,500	0
Total income	36,500	0
Expenses
Interest on borrowed funds	11	0
Interest on subordinated notes	636	250
Other expenses	437	200
Total expenses	1,084	450
Income (loss) before income taxes and equity in (overdistributed) undistributed net earnings of subsidiaries	35,416	(450)
Income tax benefit	127	52
Equity in (overdistributed) undistributed earnings of subsidiaries	(31,433)	3,865
Net income	4,110	3,467
Other comprehensive income	1,777	2,069
Total comprehensive income, net of tax	$ 5,887	$ 5,536