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Fair Value (Recorded amount of assets and liabilities measured at fair value) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
AFS Securities
AFS Securities	$ 489,029	$ 528,148
Fair value, total	492,012	532,059
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	$ 489,029	$ 530,570
Percent of assets and liabilities measured at fair value	99.39%	99.72%
Level 3 [Member]
AFS Securities
Fair value, total	$ 2,983	$ 1,489
Percent of assets and liabilities measured at fair value	0.61%	0.28%
Recurring items [Member]
AFS Securities
AFS Securities	$ 489,029	$ 528,148
Recurring items [Member] | US Treasury Securities
AFS Securities
AFS Securities	220,571	214,801
Recurring items [Member] | States and political subdivisions [Member]
AFS Securities
AFS Securities	76,568	92,876
Recurring items [Member] | Auction rate securities [Member]
AFS Securities
AFS Securities	3,044	2,931
Recurring items [Member] | Mortgage-backed securities [Member]
AFS Securities
AFS Securities	26,886	32,815
Recurring items [Member] | Collateralized mortgage obligations [Member]
AFS Securities
AFS Securities	154,674	177,775
Recurring items [Member] | Corporate Debt Securities
AFS Securities
AFS Securities	7,286	6,950
Recurring items [Member] | Level 1 [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 1 [Member] | US Treasury Securities
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 1 [Member] | States and political subdivisions [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 1 [Member] | Auction rate securities [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 1 [Member] | Mortgage-backed securities [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 1 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 1 [Member] | Corporate Debt Securities
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 2 [Member]
AFS Securities
AFS Securities	489,029	528,148
Recurring items [Member] | Level 2 [Member] | US Treasury Securities
AFS Securities
AFS Securities	220,571	214,801
Recurring items [Member] | Level 2 [Member] | States and political subdivisions [Member]
AFS Securities
AFS Securities	76,568	92,876
Recurring items [Member] | Level 2 [Member] | Auction rate securities [Member]
AFS Securities
AFS Securities	3,044	2,931
Recurring items [Member] | Level 2 [Member] | Mortgage-backed securities [Member]
AFS Securities
AFS Securities	26,886	32,815
Recurring items [Member] | Level 2 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
AFS Securities	154,674	177,775
Recurring items [Member] | Level 2 [Member] | Corporate Debt Securities
AFS Securities
AFS Securities	7,286	6,950
Recurring items [Member] | Level 3 [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 3 [Member] | US Treasury Securities
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 3 [Member] | States and political subdivisions [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 3 [Member] | Auction rate securities [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 3 [Member] | Mortgage-backed securities [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 3 [Member] | Collateralized mortgage obligations [Member]
AFS Securities
AFS Securities	0	0
Recurring items [Member] | Level 3 [Member] | Corporate Debt Securities
AFS Securities
AFS Securities	0	0
Nonrecurring items [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	254	1,083
Other Mortgage Servicing Rights, Fair Value Disclosure	2,185	2,422
Foreclosed assets	544	406
Nonrecurring items [Member] | Level 1 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	0	0
Other Mortgage Servicing Rights, Fair Value Disclosure	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
Other Mortgage Servicing Rights, Fair Value Disclosure	0	2,422
Foreclosed assets	0	0
Nonrecurring items [Member] | Level 3 [Member]
AFS Securities
Impaired loans (net of the allowance for loan losses)	254	1,083
Other Mortgage Servicing Rights, Fair Value Disclosure	2,185	0
Foreclosed assets	$ 544	$ 406

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