Summary of Significant Accounting Policies (Summary of Changes in Intangibles) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Intangible amortization	$ 1,180,000	$ 1,398,000	$ 1,430,000
Core Deposit Intangible [Member]
Finite Lived Intangible Assets [Line Items]
Intangible balance, beginning of year	4,311,000	5,526,000	6,893,000
Intangible resulting from acquisition of Riverview	4,096,000
Intangible amortization	1,125,000	1,215,000	1,367,000
Intangible balance, end of year	7,282,000	$ 4,311,000	$ 5,526,000
Customer Lists Intangible [Member]
Finite Lived Intangible Assets [Line Items]
Intangible resulting from acquisition of Riverview	2,160,000
Intangible amortization	33,000
Intangible balance, end of year	$ 2,127,000