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Warehouse Lines of Credit (Details) - USD ($)
3 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Dec. 31, 2020
Line of Credit Facility [Line Items]      
Line of credit, Outstanding, current   $ 9,577,000  
Liquid assets   54,450,000 $ 32,856,000
Warehousing credit and security agreement      
Line of Credit Facility [Line Items]      
Maximum borrowing capacity   15,000,000.0  
Line of credit, Outstanding, current   0  
Line of credit, Outstanding, noncurrent   $ 2,200,000  
Libor interest rate   2.09%  
Debt-to-tangible net worth ratio   15.00%  
Tangible net worth   $ 3,000,000.0  
Warehousing credit and security agreement | Minimum      
Line of Credit Facility [Line Items]      
Liquid assets   $ 1,000,000.0  
Warehousing credit and security agreement | Prime rate      
Line of Credit Facility [Line Items]      
Variable rate, Basis spread   0.75%  
Prime rate, Basis spread   3.25  
Variable Interest Rate   3.85%  
Warehousing credit and security agreement | London Interbank Offered Rate (LIBOR)      
Line of Credit Facility [Line Items]      
Libor interest rate   2.00%  
Warehousing credit and security agreement | London Interbank Offered Rate (LIBOR) | Minimum      
Line of Credit Facility [Line Items]      
Libor interest rate   2.00%  
Warehousing credit and security agreement | London Interbank Offered Rate (LIBOR) | Maximum      
Line of Credit Facility [Line Items]      
Libor interest rate   3.50%  
Master loan agreement      
Line of Credit Facility [Line Items]      
Variable Interest Rate   3.625%  
Maximum borrowing capacity   $ 15,000,000.0  
Line of credit, Outstanding, current   $ 4,300,000  
Debt-to-tangible net worth ratio   12.00%  
Tangible net worth   $ 2,000,000.0  
Master loan agreement | Minimum      
Line of Credit Facility [Line Items]      
Liquid assets   1,000,000.0  
Mortgage participation purchase agreement      
Line of Credit Facility [Line Items]      
Maximum borrowing capacity   $ 25,000,000.0  
Interest Rate   3.50%  
Line of credit, Outstanding, noncurrent   $ 3,100,000  
Debt-to-tangible net worth ratio   15.00%  
Tangible net worth   $ 2,500,000  
Mortgage participation purchase agreement | Subsequent events      
Line of Credit Facility [Line Items]      
Minimum profitability, line of credit 1.00%    
Mortgage participation purchase agreement | Minimum      
Line of Credit Facility [Line Items]      
Liquid assets   $ 1,000,000.0