Transfers of Financial Assets (Reserve for loan repurchases) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance		$ 2,506	$ 2,362
(Benefit) provision charged to expense			144
Ending balance			2,506
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 508	674	872
(Benefit) provision charged to expense	141	1,865	(160)
Repurchased loans and settlements charged off	98	(2,031)	(38)
Ending balance	$ 747	$ 508	$ 674