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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
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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

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123586238&loc=d3e38679-109324 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(9)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794 + Details
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