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Loans and Allowance for Loan Credit Losses - Schedule of Amortized Costs by Segment of Loans and Credit Risk Profile of Loan Portfolio (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | $ 3,723 |  | $ 19,262
Year before current fiscal year | 19,129 |  | 20,360
Two years before current fiscal year | 19,183 |  | 55,889
Three years before current year | 55,533 |  | 51,978
Four years before current fiscal year | 51,347 |  | 26,569
Prior | 117,104 |  | 92,298
Revolving Loans | 34,160 |  | 45,108
Revolving to Term Loans | 1,823 |  | 1,823
Total | 302,002 |  | 313,287
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Gross charge-offs, current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, three years before current year | 0 |  | 0
Gross charge-offs, four years before current fiscal year | 0 |  | 0
Gross charge-offs, prior | 0 |  | 0
Gross charge-offs, Revolving Loans | 0 |  | 0
Gross charge-offs, Revolving to Term Loans | 0 |  | 0
Gross charge-offs, Loans | 0 | $ 0 | 0
Pass |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 3,723 |  | 19,262
Year before current fiscal year | 19,129 |  | 20,360
Two years before current fiscal year | 19,183 |  | 54,213
Three years before current year | 53,857 |  | 50,402
Four years before current fiscal year | 49,797 |  | 26,569
Prior | 113,140 |  | 90,218
Revolving Loans | 34,160 |  | 45,108
Revolving to Term Loans | 1,823 |  | 1,823
Total | 294,812 |  | 307,955
Special Mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 1,576
Four years before current fiscal year | 1,550 |  | 0
Prior | 2,145 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 3,695 |  | 1,576
Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 1,676
Three years before current year | 1,676 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 1,819 |  | 2,081
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 3,495 |  | 3,757
Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Loss |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Commercial real estate |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 2,873
Year before current fiscal year | 2,856 |  | 2,526
Two years before current fiscal year | 2,515 |  | 8,137
Three years before current year | 7,458 |  | 8,826
Four years before current fiscal year | 8,698 |  | 3,424
Prior | 30,455 |  | 27,694
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 51,982 |  | 53,480
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Gross charge-offs, current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, three years before current year | 0 |  | 0
Gross charge-offs, four years before current fiscal year | 0 |  | 0
Gross charge-offs, prior | 0 |  | 0
Gross charge-offs, Revolving Loans | 0 |  | 0
Gross charge-offs, Revolving to Term Loans | 0 |  | 0
Gross charge-offs, Loans | 0 | 0 | 0
Commercial real estate | Pass |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 2,873
Year before current fiscal year | 2,856 |  | 2,526
Two years before current fiscal year | 2,515 |  | 6,461
Three years before current year | 5,782 |  | 7,250
Four years before current fiscal year | 7,148 |  | 3,424
Prior | 26,491 |  | 25,849
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 44,792 |  | 48,383
Commercial real estate | Special Mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 1,576
Four years before current fiscal year | 1,550 |  | 0
Prior | 2,145 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 3,695 |  | 1,576
Commercial real estate | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 1,676
Three years before current year | 1,676 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 1,819 |  | 1,845
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 3,495 |  | 3,521
Commercial real estate | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Commercial real estate | Loss |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Commercial |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 40 |  | 403
Year before current fiscal year | 382 |  | 0
Two years before current fiscal year | 0 |  | 552
Three years before current year | 546 |  | 9
Four years before current fiscal year | 8 |  | 0
Prior | 1,094 |  | 1,147
Revolving Loans | 16,485 |  | 25,772
Revolving to Term Loans | 0 |  | 0
Total | 18,555 |  | 27,883
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Gross charge-offs, current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, three years before current year | 0 |  | 0
Gross charge-offs, four years before current fiscal year | 0 |  | 0
Gross charge-offs, prior | 0 |  | 0
Gross charge-offs, Revolving Loans | 0 |  | 0
Gross charge-offs, Revolving to Term Loans | 0 |  | 0
Gross charge-offs, Loans | 0 | 0 | 0
Commercial | Pass |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 40 |  | 403
Year before current fiscal year | 382 |  | 0
Two years before current fiscal year | 0 |  | 552
Three years before current year | 546 |  | 9
Four years before current fiscal year | 8 |  | 0
Prior | 1,094 |  | 1,147
Revolving Loans | 16,485 |  | 25,772
Revolving to Term Loans | 0 |  | 0
Total | 18,555 |  | 27,883
Commercial | Special Mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Commercial | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Commercial | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Commercial | Loss |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Residential real estate closed-end |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 3,683 |  | 15,969
Year before current fiscal year | 15,876 |  | 17,834
Two years before current fiscal year | 16,668 |  | 47,200
Three years before current year | 47,529 |  | 43,125
Four years before current fiscal year | 42,625 |  | 23,145
Prior | 85,555 |  | 63,458
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 211,936 |  | 210,730
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Gross charge-offs, current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, three years before current year | 0 |  | 0
Gross charge-offs, four years before current fiscal year | 0 |  | 0
Gross charge-offs, prior | 0 |  | 0
Gross charge-offs, Revolving Loans | 0 |  | 0
Gross charge-offs, Revolving to Term Loans | 0 |  | 0
Gross charge-offs, Loans | 0 | 0 | 0
Residential real estate closed-end | Pass |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 3,683 |  | 15,969
Year before current fiscal year | 15,876 |  | 17,834
Two years before current fiscal year | 16,668 |  | 47,200
Three years before current year | 47,529 |  | 43,125
Four years before current fiscal year | 42,625 |  | 23,145
Prior | 85,555 |  | 63,222
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 211,936 |  | 210,495
Residential real estate closed-end | Special Mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Residential real estate closed-end | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 236
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 236
Residential real estate closed-end | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Residential real estate closed-end | Loss |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Other consumer loans |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 17
Year before current fiscal year | 15 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 18
Four years before current fiscal year | 16 |  | 0
Prior | 0 |  | 0
Revolving Loans | 17,675 |  | 19,336
Revolving to Term Loans | 1,823 |  | 1,823
Total | 19,529 |  | 21,194
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Gross charge-offs, current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, year before current fiscal year | 0 |  | 0
Gross charge-offs, three years before current year | 0 |  | 0
Gross charge-offs, four years before current fiscal year | 0 |  | 0
Gross charge-offs, prior | 0 |  | 0
Gross charge-offs, Revolving Loans | 0 |  | 0
Gross charge-offs, Revolving to Term Loans | 0 |  | 0
Gross charge-offs, Loans | 0 | $ 0 | 0
Other consumer loans | Pass |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 17
Year before current fiscal year | 15 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 18
Four years before current fiscal year | 16 |  | 0
Prior | 0 |  | 0
Revolving Loans | 17,675 |  | 19,336
Revolving to Term Loans | 1,823 |  | 1,823
Total | 19,529 |  | 21,194
Other consumer loans | Special Mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Other consumer loans | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Other consumer loans | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | 0 |  | 0
Other consumer loans | Loss |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Current fiscal year | 0 |  | 0
Year before current fiscal year | 0 |  | 0
Two years before current fiscal year | 0 |  | 0
Three years before current year | 0 |  | 0
Four years before current fiscal year | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total | $ 0 |  | $ 0

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