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4. Debt (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Warehouse lines of credit $ 117,104 $ 136,847
Residual interest financing [Member]    
Unamortized debt issuance costs 801 894
Warehouse Lines of Credit [Member]    
Unamortized debt issuance costs 1,900 $ 1,200
Credit line maximum borrowing amount 100,000  
Warehouse lines of credit $ 46,900  
Credit line expiration date Feb. 28, 2021