Loans Receivable Held for Investment, Activity in Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	$ 7,348	$ 4,388
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	204	88
Ending balance	7,552	6,285
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)	38	(62)
Ending balance	298	261
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	0
Provision (recapture)	(88)	56
Ending balance	4,325	3,932
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	0
Provision (recapture)	15	97
Ending balance	1,109	1,012
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	(10)
Ending balance	90	92
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)	24	61
Ending balance	956	593
Commercial - Other [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	529	175
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	193	(72)
Ending balance	722	357
SBA Loans [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	48	0
Charge-offs	0	0
Recoveries	0	0
Provision (recapture)	4	18
Ending balance	52	38
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] \| ASU 2016-13 [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance		1,809
Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2016-13 [Member] \| Real Estate [Member] \| Single-Family [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance		214
Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2016-13 [Member] \| Real Estate [Member] \| Multi-Family [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance		603
Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2016-13 [Member] \| Real Estate [Member] \| Commercial Real Estate [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance		466
Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2016-13 [Member] \| Real Estate [Member] \| Church [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance		37
Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2016-13 [Member] \| Real Estate [Member] \| Construction [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance		219
Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2016-13 [Member] \| Commercial - Other [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance		254
Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2016-13 [Member] \| SBA Loans [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance		20
Cumulative Effect, Period of Adoption, Adjustment [Member] \| ASU 2016-13 [Member] \| Consumer [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning 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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- Definition

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

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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.

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- Definition

Amount of writeoff of financing receivable, charged against allowance for credit loss.

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- Definition

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

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