Loans Receivable Held for Investment, Activity in Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024		Jun. 30, 2023		Jun. 30, 2024		Jun. 30, 2023
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	$ 7,552		$ 6,285		$ 7,348		$ 4,388
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	552	[1]	685	[2]	756	[1]	773	[2]
Ending balance	8,104		6,970		8,104		6,970
Recovery of provision for off-balance sheet loan commitments	58		83		2		37
Real Estate [Member] | Single-Family [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	298		261		260		109
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	3	[1]	(14)	[2]	41	[1]	(76)	[2]
Ending balance	301		247		301		247
Real Estate [Member] | Multi-Family [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	4,325		3,932		4,413		3,273
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	365	[1]	323	[2]	277	[1]	379	[2]
Ending balance	4,690		4,255		4,690		4,255
Real Estate [Member] | Commercial Real Estate [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	1,109		1,012		1,094		449
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	62	[1]	0	[2]	77	[1]	97	[2]
Ending balance	1,171		1,012		1,171		1,012
Real Estate [Member] | Church [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	90		92		72		65
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	(6)	[1]	(9)	[2]	12	[1]	(19)	[2]
Ending balance	84		83		84		83
Real Estate [Member] | Construction [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	956		593		932		313
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	154	[1]	195	[2]	178	[1]	256	[2]
Ending balance	1,110		788		1,110		788
Commercial - Other [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	722		357		529		175
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	(104)	[1]	189	[2]	89	[1]	117	[2]
Ending balance	618		546		618		546
SBA Loans [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	52		38		48		0
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	78	[1]	1	[2]	82	[1]	19	[2]
Ending balance	130		39		130		39
Consumer [Member]
Allowance for Credit Losses on Loans [Roll Forward]
Beginning balance	0		0		0		4
Charge-offs	0		0		0		0
Recoveries	0		0		0		0
Provision (recapture)	0	[1]	0	[2]	0	[1]	0	[2]
Ending balance	$ 0		$ 0		$ 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)

[1] The bank also recorded a recovery of provision for off-balance sheet loan commitments of $58 thousand and $2 thousand for the three and six months ended June 30, 2024, respectively.

[2] The bank also recorded a provision for off-balance sheet loan commitments of $83 thousand and $37 thousand for the three and six months ended June 30, 2023, respectively.