Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Provision at the expected statutory rate									$ 7,571,000	$ 6,581,000	$ 4,499,000
Effect of tax-exempt income									(477,000)	(499,000)	(683,000)
Effect of investment in life insurance									(75,000)	(63,000)	(66,000)
State income taxes, net of federal tax benefit									55,000	124,000	146,000.0
Nondeductible interest									14,000	26,000	59,000
Low income housing partnership tax credits									(853,000)	(861,000)	(83,000)
Nondeductible merger and acquisition expense									364,000
Other items									133,000	(178,000)	(147,000)
Provision for income taxes	$ (17,000)	$ 2,272,000	$ 2,310,000	$ 2,167,000	$ 1,909,000	$ 889,000	$ 1,682,000	$ 650,000	$ 6,732,000	$ 5,130,000	$ 3,725,000