Accumulated Other Comprehensive Income (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Beginning balance	$ 73,749	$ 76,902	$ 76,597	$ 73,707	$ 73,707
Net current period other comprehensive income (loss)	(1,481)	271	(4,973)	3,311
Reclassification for ASU	47,063		47,063		45,096
Ending balance	73,103	76,701	73,103	76,701	76,597
Accumulated Other Comprehensive Loss [Member]
Beginning balance	26	3,556	3,518	516	516
Other comprehensive income (loss) before reclassification			(4,961)		3,689
Amounts reclassified from accumulated other comprehensive income (loss)			(12)		(682)
Net current period other comprehensive income (loss)	(1,481)	271	(4,973)	3,311	3,007
Ending balance	(1,455)	$ 3,827	(1,455)	3,827	3,518
Unrealized Gains and Losses on Cash Flow Hedges [Member]
Beginning balance			(45)	0	0
Other comprehensive income (loss) before reclassification			355		(38)
Amounts reclassified from accumulated other comprehensive income (loss)			34		(7)
Net current period other comprehensive income (loss)			389		(45)
Ending balance	344		344		(45)
Unrealized Gains and Losses on Available for Sale Securities [Member]
Beginning balance			3,563	$ 516	516
Other comprehensive income (loss) before reclassification			(5,316)		3,727
Amounts reclassified from accumulated other comprehensive income (loss)			(46)		(675)
Net current period other comprehensive income (loss)			(5,362)		3,052
Ending balance	$ (1,799)		$ (1,799)		3,563
Revision of Prior Period, Accounting Standards Update, Adjustment [Member] | ASU 2018-02 [Member] | Accumulated Other Comprehensive Loss [Member]
Reclassification for ASU					(5)
Revision of Prior Period, Accounting Standards Update, Adjustment [Member] | ASU 2018-02 [Member] | Unrealized Gains and Losses on Cash Flow Hedges [Member]
Reclassification for ASU					0
Revision of Prior Period, Accounting Standards Update, Adjustment [Member] | ASU 2018-02 [Member] | Unrealized Gains and Losses on Available for Sale Securities [Member]
Reclassification for ASU					$ (5)