Loans Receivable Held for Investment, Activity in Allowance for Loan Losses by Loan Type (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	$ 3,539	$ 3,215	$ 3,391	$ 3,215
Provision for (recapture of) loan losses	(577)	81	(429)	81
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	2,962	3,296	2,962	3,296
Real Estate [Member] \| Single Family [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	157	275	145	296
Provision for (recapture of) loan losses	(37)	(105)	(25)	(126)
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	120	170	120	170
Real Estate [Member] \| Multi-Family [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	2,771	2,473	2,657	2,433
Provision for (recapture of) loan losses	(493)	133	(379)	173
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	2,278	2,606	2,278	2,606
Real Estate [Member] \| Commercial Real Estate [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	217	219	236	222
Provision for (recapture of) loan losses	(64)	8	(83)	5
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	153	227	153	227
Real Estate [Member] \| Church [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	63	221	103	237
Provision for (recapture of) loan losses	(15)	(13)	(55)	(29)
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	48	208	48	208
Real Estate [Member] \| Construction [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	236	22	212	22
Provision for (recapture of) loan losses	(15)	59	9	59
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	221	81	221	81
Commercial - Other [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	95	5	23	4
Provision for (recapture of) loan losses	43	(1)	115	0
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	138	4	138	4
Consumer [Member]
Allowance for Loan and Lease Losses by Loan Type [Roll Forward]
Beginning balance	0	0	15	1
Provision for (recapture of) loan losses	4	0	(11)	(1)
Recoveries	0	0	0	0
Loans charged off	0	0	0	0
Ending balance	$ 4	$ 0	$ 4	$ 0

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.

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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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