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9. Convertible Debentures Payable (Tables)
 12 Months Ended
Dec. 31, 2017
Convertible Debentures Payable Tables  
Payments of principal and interest and remaining accrued interest
    June 23, 2016     June 23, 2016     Remaining  
    Principal     Interest     Accrued  
    Payment     Payment     Interest  
    ($ in thousands)  
Credit agreements - first mortgage note   $ 500     $ 470     $ -  
payable-related party                        
                         
Collateralized convertible debentures                        
payable-related party     1,500       5,455       52,915  
    $ 2,000     $ 5,925     $ 52,915