Loans Receivable Held for Investment, Collateral Dependent Loans by Collateral Type (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($) Loan	Dec. 31, 2022 USD ($)
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	$ 843,113	$ 773,444
Individually evaluated loans based on the underlying value of collateral	$ 6,400
Number of loans individually evaluated using discounted cash flow approach | Loan	0
Collateral Pledged [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	$ 6,353
Collateral Pledged - Single Family [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	47
Collateral Pledged - Multi-Family Residential [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	$ 5,707
Number of loans whose payments were being supported by guarantor | Loan	1
Collateral Pledged - Church [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	$ 464
Collateral Pledged - Business Assets [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	135
Real Estate [Member] | Single Family [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	25,514	30,038
Real Estate [Member] | Single Family [Member] | Collateral Pledged [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	47
Real Estate [Member] | Single Family [Member] | Collateral Pledged - Single Family [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	47
Real Estate [Member] | Single Family [Member] | Collateral Pledged - Multi-Family Residential [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Single Family [Member] | Collateral Pledged - Church [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Single Family [Member] | Collateral Pledged - Business Assets [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Multi-Family [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	534,057	503,896
Real Estate [Member] | Multi-Family [Member] | Collateral Pledged [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	5,707
Real Estate [Member] | Multi-Family [Member] | Collateral Pledged - Single Family [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Multi-Family [Member] | Collateral Pledged - Multi-Family Residential [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	5,707
Real Estate [Member] | Multi-Family [Member] | Collateral Pledged - Church [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Multi-Family [Member] | Collateral Pledged - Business Assets [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Commercial Real Estate [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	116,100	114,574
Real Estate [Member] | Commercial Real Estate [Member] | Collateral Pledged [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	69
Real Estate [Member] | Commercial Real Estate [Member] | Collateral Pledged - Single Family [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Commercial Real Estate [Member] | Collateral Pledged - Multi-Family Residential [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Commercial Real Estate [Member] | Collateral Pledged - Church [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	69
Real Estate [Member] | Commercial Real Estate [Member] | Collateral Pledged - Business Assets [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Church [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	12,896	15,780
Real Estate [Member] | Church [Member] | Collateral Pledged [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	395
Real Estate [Member] | Church [Member] | Collateral Pledged - Single Family [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Church [Member] | Collateral Pledged - Multi-Family Residential [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Real Estate [Member] | Church [Member] | Collateral Pledged - Church [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	395
Real Estate [Member] | Church [Member] | Collateral Pledged - Business Assets [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Commercial - Other [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans		$ 68,442
Commercial - Other [Member] | Collateral Pledged [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	135
Commercial - Other [Member] | Collateral Pledged - Single Family [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Commercial - Other [Member] | Collateral Pledged - Multi-Family Residential [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Commercial - Other [Member] | Collateral Pledged - Church [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	0
Commercial - Other [Member] | Collateral Pledged - Business Assets [Member]
Collateral Dependent Loans By Collateral Type [Abstract]
Total Loans	$ 135