Fair Value (Recorded amount of assets and liabilities measured at fair value) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
AFS Securities
Debt Securities, Available-for-sale	$ 490,601	$ 339,228
Fair value, total	511,748	361,657
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	$ 492,725	$ 341,590
Percent of assets and liabilities measured at fair value	96.28%	94.45%
Level 3 [Member]
AFS Securities
Fair value, total	$ 19,023	$ 20,067
Percent of assets and liabilities measured at fair value	3.72%	5.55%
Recurring items [Member]
AFS Securities
Debt Securities, Available-for-sale	$ 490,601	$ 339,228
Derivative Assets (Liabilities), at Fair Value, Net	0	54
Recurring items [Member] \| States and political subdivisions [Member]
AFS Securities
Debt Securities, Available-for-sale	121,205	143,656
Recurring items [Member] \| Auction rate money market preferred [Member]
AFS Securities
Debt Securities, Available-for-sale	3,242	3,237
Recurring items [Member] \| Mortgage-backed securities [Member]
AFS Securities
Debt Securities, Available-for-sale	56,148	88,652
Recurring items [Member] \| Collateralized mortgage obligations [Member]
AFS Securities
Debt Securities, Available-for-sale	92,301	101,983
Recurring items [Member] \| Corporate Debt Securities
AFS Securities
Debt Securities, Available-for-sale	8,002	1,700
Recurring items [Member] \| US Treasury Securities
AFS Securities
Debt Securities, Available-for-sale	209,703	0
Recurring items [Member] \| Level 1 [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Derivative Assets (Liabilities), at Fair Value, Net	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	490,601	339,228
Derivative Assets (Liabilities), at Fair Value, Net	0	54
Recurring items [Member] \| Level 2 [Member] \| States and political subdivisions [Member]
AFS Securities
Debt Securities, Available-for-sale	121,205	143,656
Recurring items [Member] \| Level 2 [Member] \| Auction rate money market preferred [Member]
AFS Securities
Debt Securities, Available-for-sale	3,242	3,237
Recurring items [Member] \| Level 2 [Member] \| Mortgage-backed securities [Member]
AFS Securities
Debt Securities, Available-for-sale	56,148	88,652
Recurring items [Member] \| Level 2 [Member] \| Collateralized mortgage obligations [Member]
AFS Securities
Debt Securities, Available-for-sale	92,301	101,983
Recurring items [Member] \| Level 2 [Member] \| Corporate Debt Securities
AFS Securities
Debt Securities, Available-for-sale	8,002	1,700
Recurring items [Member] \| Level 2 [Member] \| US Treasury Securities
AFS Securities
Debt Securities, Available-for-sale	209,703	0
Recurring items [Member] \| Level 3 [Member]
AFS Securities
Debt Securities, Available-for-sale	0	0
Derivative Assets (Liabilities), at Fair Value, Net	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)	18,812	19,540
OMSR	2,124	2,308
Foreclosed assets	211	527
Nonrecurring items [Member] \| Level 1 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	0	0
OMSR	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
OMSR	2,124	2,308
Foreclosed assets	0	0
Nonrecurring items [Member] \| Level 3 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	18,812	19,540
OMSR	0	0
Foreclosed assets	$ 211	$ 527

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+ References

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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-Topic 326
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-SubTopic 10
-Section 45
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