Loans Receivable Held for Investment, Activity in Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	$ 7,348	$ 4,388
Charge-offs	0	0
Recoveries	0	216
Provision (recapture)	755	935
Ending balance	8,103	7,348
Recovery of provision for off-balance sheet loan commitments	91	2
Real Estate [Member] \| Single-Family [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	260	109
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	(64)	(63)
Ending balance	196	260
Real Estate [Member] \| Multi-Family [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	4,413	3,273
Charge-offs	0	0
Recoveries	0	109
Provision (recapture)	155	428
Ending balance	4,568	4,413
Real Estate [Member] \| Commercial Real Estate [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	1,094	449
Charge-offs	0	0
Recoveries	0	107
Provision (recapture)	35	72
Ending balance	1,129	1,094
Real Estate [Member] \| Church [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	72	65
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	(18)	(30)
Ending balance	54	72
Real Estate [Member] \| Construction [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	932	313
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	543	400
Ending balance	1,475	932
Commercial - Other [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	529	175
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	141	100
Ending balance	670	529
SBA Loans [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	48	0
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	(37)	28
Ending balance	11	48
Consumer [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	0	4
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	0	0
Ending balance	0	0
Cumulative Effect, Period of Adoption, Adjustment [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	1,809
Ending balance		1,809
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Real Estate [Member] \| Single-Family [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	214
Ending balance		214
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Real Estate [Member] \| Multi-Family [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	603
Ending balance		603
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Real Estate [Member] \| Commercial Real Estate [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	466
Ending balance		466
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Real Estate [Member] \| Church [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	37
Ending balance		37
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Real Estate [Member] \| Construction [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	219
Ending balance		219
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Commercial - Other [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	254
Ending balance		254
Cumulative Effect, Period of Adoption, Adjustment [Member] \| SBA Loans [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	20
Ending balance		20
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Consumer [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	$ (4)
Ending balance		$ (4)

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of increase in allowance for credit loss on financing receivable from recovery.

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- Definition

Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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