Loans Receivable and Allowance for Credit Losses - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Allowance for Credit Losses
Beginning Balance	$ 1,699	$ 1,699	$ 1,699	$ 1,699
Ending Balance	1,699	1,699	1,699	1,699
Unallocated
Allowance for Credit Losses
Beginning Balance	236	119	367	7
Net Provision for Credit Loss	(239)	209	(370)	321
Ending Balance	(3)	328	(3)	328
Real Estate Loans \| One-to-Four Family Mortgages
Allowance for Credit Losses
Beginning Balance	1,256	1,441	1,202	1,526
Net Provision for Credit Loss	218	(173)	272	(258)
Ending Balance	1,474	1,268	1,474	1,268
Real Estate Loans \| Home Equity Lines of Credit
Allowance for Credit Losses
Beginning Balance	36	43	42	45
Net Provision for Credit Loss	4	1	(2)	(1)
Ending Balance	40	44	40	44
Real Estate Loans \| Construction and Land
Allowance for Credit Losses
Beginning Balance	18	26	22	13
Net Provision for Credit Loss	26		22	13
Ending Balance	44	26	44	26
Real Estate Loans \| Commercial Real Estate
Allowance for Credit Losses
Beginning Balance	17		32
Net Provision for Credit Loss	31		16
Ending Balance	48		48
Other Loans \| Commercial and Industrial
Allowance for Credit Losses
Beginning Balance	136	43	34	80
Net Provision for Credit Loss	(40)	(10)	62	(47)
Ending Balance	$ 96	33	$ 96	33
Other Loans \| Consumer Loans
Allowance for Credit Losses
Beginning Balance		27		28
Net Provision for Credit Loss		$ (27)		$ (28)

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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of credit loss expense (reversal of expense) on financing receivable from change in methodology. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-11

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