Loans - Secured Loans by Property Type (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2022 USD ($) Loan	Dec. 31, 2022 USD ($) MortgageLoan	Dec. 31, 2021 USD ($) Loan	Dec. 31, 2021 USD ($) MortgageLoan	Dec. 31, 2020 USD ($)
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans		21	21	31	31
Secured loans, principal		$ 60,088	$ 60,088	$ 55,099	$ 55,099	$ 74,080
Loans - percent		100.00%	100.00%	100.00%	100.00%
Single Family [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | Loan	[1]	4		16
Secured loans, principal	[1]	$ 5,874	$ 5,874	$ 14,597	$ 14,597
Loans - percent	[1]	10.00%	10.00%	26.00%	26.00%
Multi-family [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | Loan		3		2
Secured loans, principal		$ 8,326	$ 8,326	$ 7,550	$ 7,550
Loans - percent		14.00%	14.00%	14.00%	14.00%
Commercial [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | Loan		12		13
Secured loans, principal		$ 44,587	$ 44,587	$ 32,952	$ 32,952
Loans - percent		74.00%	74.00%	60.00%	60.00%
Land [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | Loan		2
Secured loans, principal		$ 1,301	$ 1,301
Loans - percent		2.00%	2.00%

[1] Single family property type as of December 31, 2022 consists of 4 loans with aggregate principal of approximately $5.9 million that are non-owner occupied. At December 31, 2021, single family property type consisted of 4 loans with aggregate principal of approximately $2.3 million that were owner occupied and 12 loans with aggregate principal of approximately $12.3 million that were non-owner occupied. Single family includes 1-4 unit residential buildings, condominium units, townhouses and condominium complexes.