Loans Receivable Held for Investment, Activity in Allowance for Loan Losses by Loan Type (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	$ 2,962	$ 3,296	$ 3,391	$ 3,215
Provision for (recapture of) loan losses	1,021	365	592	446
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	3,983	3,661	3,983	3,661
Real Estate [Member] \| Single Family [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	120	170	145	296
Provision for (recapture of) loan losses	(8)	(10)	(33)	(136)
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	112	160	112	160
Real Estate [Member] \| Multi-Family [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	2,278	2,606	2,657	2,433
Provision for (recapture of) loan losses	641	325	262	498
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	2,919	2,931	2,919	2,931
Real Estate [Member] \| Commercial Real Estate [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	153	227	236	222
Provision for (recapture of) loan losses	142	32	59	37
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	295	259	295	259
Real Estate [Member] \| Church [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	48	208	103	237
Provision for (recapture of) loan losses	6	(18)	(49)	(47)
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	54	190	54	190
Real Estate [Member] \| Construction [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	221	81	212	22
Provision for (recapture of) loan losses	187	35	196	94
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	408	116	408	116
Commercial - Other [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	138	4	23	4
Provision for (recapture of) loan losses	53	0	168	0
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	191	4	191	4
Consumer [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	4	0	15	1
Provision for (recapture of) loan losses	0	1	(11)	0
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	$ 4	$ 1	$ 4	$ 1

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

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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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