Annual report pursuant to Section 13 and 15(d)

LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES - Narratives (Details)

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LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES - Narratives (Details)
 12 Months Ended
Dec. 31, 2021
USD ($)
LoanContracts
Dec. 31, 2020
USD ($)
LoanContracts
Dec. 31, 2019
USD ($)
LoanContracts
Jan. 01, 2020
USD ($)
Loans, net [Abstract]        
Accrued interest receivable $ 5,300,000 $ 6,900,000    
Real estate loans for which formal foreclosure proceedings were in process 900,000 1,600,000    
TDRs 8,000,000.0 14,300,000    
TDRs performing in accordance with modified terms 7,600,000 13,900,000    
Estimated loan loss reserves $ 300,000 $ 600,000    
Number of Contracts | LoanContracts 3 3 7  
TDRs, for which there was a payment default and the loans were modified within the twelve months prior to default $ 0 $ 0    
Loan modified with a recorded investment 600,000 200,000 $ 500,000  
Financing Receivable, Allowance for Credit Loss 21,606,000 23,816,000 $ 13,905,000  
Provision For Loan Losses Expensed (2,842,000) 9,035,000    
Net loan charge-offs (632,000) 2,393,000    
Purchase of real estate secured adjustable rate loans 97,500,000 48,400,000    
Net deferred costs 3,900,000      
Net deferred fees   100,000    
Tranfers from HFI to HFS 9,400,000 $ 0    
SBA PPP Loans [Member]        
Net deferred fees 3,200,000      
Third Party [Member]        
Purchase of real estate secured adjustable rate loans 17,400,000      
Adjustments related to Covid 19 [Member]        
Financing Receivable, Allowance for Credit Loss $ 9,900,000      
Impact of Adoption of ASC 326 [Member]        
Financing Receivable, Allowance for Credit Loss       $ 3,300,000