Commitments and Contingencies (Details) - Loan Purchase Commitments	12 Months Ended
Dec. 31, 2021 USD ($)
Other Commitments [Line Items]
Maximum funding percentage of each loan	30.00%
Participation amount in loan program	$ 9,600,000
Loan program, guaranteed amount	2,900,000
Third-Party Bank
Other Commitments [Line Items]
Amount of loan participation program	25,800,000
Maximum \| Third-Party Bank
Other Commitments [Line Items]
Amount of loan participation program	$ 100,000,000

Amount, before allowance for credit loss, of financing receivable.

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