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(4) Debt (Details Narrative) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Line of Credit Facility [Line Items]    
Short term credit facility $ 200,000 $ 300,000
Warehouse Lines Of Credit [Member]    
Line of Credit Facility [Line Items]    
Unamortized debt issuance costs 655 1,500
Residual Interest Financings [Member]    
Line of Credit Facility [Line Items]    
Unamortized debt issuance costs $ 692 $ 150