Commitments and Contingencies (Details) - Loan Purchase Commitments - USD ($)	12 Months Ended
Dec. 31, 2020	Jun. 30, 2021
Other Commitments [Line Items]
Minimum funding percentage of each loan	30.00%
Participation amount in loan program		$ 8,700,000
Loan program, guaranteed amount		2,600,000
Third-Party Bank
Other Commitments [Line Items]
Amount of loan participation program		$ 22,500,000
Third-Party Bank \| Maximum
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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