Fair Value (Changes in fair value of assets and liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OMSR Impairment	$ 316	$ 214	$ 0
Investments in joint venture, write down		3,566
Foreclosed Asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in fair value recorded through earnings	$ (41)	$ 111