Loans - Summary of Financial Impacts of Loan Modifications (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
One- to four-family first mortgage \| Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 4	$ 0
One- to four-family first mortgage \| Combination Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	60 months	56 months
Weighted-Average Interest Rate Reduction	0.00%	0.00%
Home equity loans and lines \| Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Home equity loans and lines \| Combination Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	24 months	0 months
Weighted-Average Interest Rate Reduction	0.00%	0.00%
Commercial real estate \| Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 179	$ 0
Commercial real estate \| Combination Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	39 months	8 months
Weighted-Average Interest Rate Reduction	2.00%	0.00%
Construction and land \| Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 165	$ 0
Construction and land \| Combination Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	7 months	3 months
Weighted-Average Interest Rate Reduction	0.00%	0.00%
Multi-family residential \| Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 165	$ 0
Multi-family residential \| Combination Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	0 months	0 months
Weighted-Average Interest Rate Reduction	0.00%	0.00%
Commercial and industrial \| Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Commercial and industrial \| Combination Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	12 months	3 months
Weighted-Average Interest Rate Reduction	1.50%	0.00%
Consumer \| Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Consumer \| Combination Term Extension and Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	0 months	0 months
Weighted-Average Interest Rate Reduction	0.00%	0.00%

Amount of increase (decrease) in amortized cost excluding accrued interest, of financing receivable modified for debtor experiencing financial difficulty.

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-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
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-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
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