Allowance for Loan Credit Losses - Allowance for loan losses activity (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Allowance for Loan Credit Losses
Beginning Balance	$ 19,805	$ 18,715	$ 18,715
Recoveries	35
Provision for (recovery of) credit losses	143	111
Ending balance	19,983	18,826	19,805
Real Estate Loans \| Commercial Real Estate
Allowance for Loan Credit Losses
Beginning Balance	11,177	11,732	11,732
Provision for (recovery of) credit losses	(144)	(113)
Ending balance	11,033	11,619	11,177
Real Estate Loans \| Construction and land development
Allowance for Loan Credit Losses
Beginning Balance	3,014	1,761	1,761
Provision for (recovery of) credit losses	59	277
Ending balance	3,073	2,038	3,014
Real Estate Loans \| Residential Real Estate
Allowance for Loan Credit Losses
Beginning Balance	5,018	4,594	4,594
Provision for (recovery of) credit losses	274	(24)
Ending balance	5,292	4,570	5,018
Commercial - Non-Real Estate \| Commercial
Allowance for Loan Credit Losses
Beginning Balance	564	548	548
Charge-offs			(361)
Recoveries	35
Provision for (recovery of) credit losses	(18)	47
Ending balance	581	595	564
Consumer - Non-Real Estate \| Consumer
Allowance for Loan Credit Losses
Beginning Balance	32	80	80
Provision for (recovery of) credit losses	(28)	(76)
Ending balance	$ 4	$ 4	$ 32

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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