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6. Debt (Details Narrative) - USD ($)
$ in Thousands
Nov. 24, 2015
Apr. 17, 2015
May 11, 2012
Dec. 31, 2018
Dec. 31, 2017
Debt issuance costs       $ 1,200 $ 1,900
Warehouse lines of credit       136,847 112,408
Unamortized debt issuance costs       894  
Warehouse Credit Facility [Member] | Citibank [Member]          
Credit line maximum     $ 100,000    
Warehouse lines of credit       99,900  
Credit line maturity date     Sep. 30, 2021    
Warehouse Credit Facility [Member] | Fortress Investment Group [Member]          
Credit line maximum   $ 100,000      
Warehouse lines of credit       38,200  
Credit line maturity date   Feb. 28, 2023      
Warehouse Credit Facility [Member] | Credit Suisse AG and Ares Agent Services [Member]          
Credit line maximum $ 100,000        
Warehouse lines of credit       0  
Credit line maturity date Nov. 30, 2019        
Three Warehouse Lines Of Credit [Member]          
Warehouse lines of credit       $ 138,100 $ 114,300