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Fair Value (Recorded amount of assets and liabilities measured at fair value) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
AFS Securities
Debt Securities, Available-for-sale	$ 580,481	$ 490,601
Fair value, total	598,063	509,624
Level 1 [Member]
AFS Securities
Fair value, total	$ 0	$ 0
Percent of assets and liabilities measured at fair value	0.00%	0.00%
Level 2 [Member]
AFS Securities
Fair value, total	$ 580,481	$ 490,601
Percent of assets and liabilities measured at fair value	97.06%	96.27%
Level 3 [Member]
AFS Securities
Fair value, total	$ 17,582	$ 19,023
Percent of assets and liabilities measured at fair value	2.94%	3.73%
Recurring items [Member]
AFS Securities
Debt Securities, Available-for-sale	$ 580,481	$ 490,601
Recurring items [Member] | States and political subdivisions [Member]
AFS Securities
Debt Securities, Available-for-sale	117,512	121,205
Recurring items [Member] | Auction rate money market preferred [Member]
AFS Securities
Debt Securities, Available-for-sale	2,342	3,242
Recurring items [Member] | Mortgage-backed securities [Member]
AFS Securities
Debt Securities, Available-for-sale	39,070	56,148
Recurring items [Member] | Collateralized mortgage obligations [Member]
AFS Securities
Debt Securities, Available-for-sale	205,728	92,301
Recurring items [Member] | Corporate Debt Securities
AFS Securities
Debt Securities, Available-for-sale	7,128	8,002
Recurring items [Member] | US Treasury Securities
AFS Securities
Debt Securities, Available-for-sale	208,701	209,703
Recurring items [Member] | Level 1 [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 1 [Member] | States and political subdivisions [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 1 [Member] | Auction rate money market preferred [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 1 [Member] | Mortgage-backed securities [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 1 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 1 [Member] | Corporate Debt Securities
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 1 [Member] | US Treasury Securities
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 2 [Member]
AFS Securities
Debt Securities, Available-for-sale	580,481	490,601
Recurring items [Member] | Level 2 [Member] | States and political subdivisions [Member]
AFS Securities
Debt Securities, Available-for-sale	117,512	121,205
Recurring items [Member] | Level 2 [Member] | Auction rate money market preferred [Member]
AFS Securities
Debt Securities, Available-for-sale	2,342	3,242
Recurring items [Member] | Level 2 [Member] | Mortgage-backed securities [Member]
AFS Securities
Debt Securities, Available-for-sale	39,070	56,148
Recurring items [Member] | Level 2 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
Debt Securities, Available-for-sale	205,728	92,301
Recurring items [Member] | Level 2 [Member] | Corporate Debt Securities
AFS Securities
Debt Securities, Available-for-sale	7,128	8,002
Recurring items [Member] | Level 2 [Member] | US Treasury Securities
AFS Securities
Debt Securities, Available-for-sale	208,701	209,703
Recurring items [Member] | Level 3 [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 3 [Member] | States and political subdivisions [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 3 [Member] | Auction rate money market preferred [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 3 [Member] | Mortgage-backed securities [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 3 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 3 [Member] | Corporate Debt Securities
AFS Securities
Debt Securities, Available-for-sale	0	0
Recurring items [Member] | Level 3 [Member] | US Treasury Securities
AFS Securities
Debt Securities, Available-for-sale	0	0
Nonrecurring items [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	17,143	18,812
Foreclosed assets	439	211
Nonrecurring items [Member] | Level 1 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	0	0
Foreclosed assets	0	0
Nonrecurring items [Member] | Level 2 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	0	0
Foreclosed assets	0	0
Nonrecurring items [Member] | Level 3 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	17,143	18,812
Foreclosed assets	$ 439	$ 211

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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