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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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