Transfers of Financial Assets (Reserve for loan repurchases) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance		$ 2,362	$ 2,287
(Benefit) provision charged to expense			75
Ending balance			2,362
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 674	872	790
(Benefit) provision charged to expense	1,865	(160)	100
Repurchased loans and settlements charged off	(2,031)	(38)	(18)
Ending balance	$ 508	$ 674	$ 872