Loans - Secured Loans by Property Type (Parenthetical) (Details)	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
Principal | $	$ 64,293,000	$ 81,097,000
Single Family Property-Owner Occupied [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | MortgageLoan	6	7
Principal | $	$ 4,304,000	$ 4,619,000
Single Family Property-NonOwner Occupied [Member]
Loans (Details) - Secured Loans by Property Type [Line Items]
Number of secured loans | MortgageLoan	14	18
Principal | $	$ 16,305,000	$ 19,617,000