Other Real Estate Owned ("OREO") (Foreclosed Real Estate Roll Forward) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Repossessed Assets Rollforward [Roll Forward]
Balance at beginning of year	$ 7,773	$ 8,111	$ 8,111
Additions of underlying property	0	3,215	3,567
Disposals of underlying property	(703)	(316)	(3,004)
Valuation allowance	(732)	(61)	(901)
Balance at end of period	$ 6,338	$ 10,949	$ 7,773