Loans - Secured Loans by Property Type (Details) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2022 USD ($) MortgageLoan	Dec. 31, 2021 USD ($) MortgageLoan
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | MortgageLoan		44	54
Loans - principal (in Dollars) | $		$ 64,293	$ 81,097
Loans - percent		100.00%	100.00%
Single Family [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | MortgageLoan	[1]	20	25
Loans - principal (in Dollars) | $	[1]	$ 20,609	$ 24,236
Loans - percent	[1]	32.00%	30.00%
Multifamily [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | MortgageLoan		9	9
Loans - principal (in Dollars) | $		$ 13,433	$ 13,438
Loans - percent		21.00%	16.00%
Commercial [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | MortgageLoan		14	19
Loans - principal (in Dollars) | $		$ 28,751	$ 41,923
Loans - percent		45.00%	52.00%
Land [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | MortgageLoan		1	1
Loans - principal (in Dollars) | $		$ 1,500	$ 1,500
Loans - percent		2.00%	2.00%

[1] Single family property type as of March 31, 2022 consists of 6 loans with principal of approximately $4,304,000 that are owner occupied and 14 loans with principal of approximately $16,305,000 that are non-owner occupied. At December 31, 2021, single family property type consisted of 7 loans with principal of approximately $4,619,000 that are owner occupied and 18 loans with principal of approximately $19,617,000 that are non-owner occupied.