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Secured Note Payable (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Mar. 27, 2018
Jun. 30, 2016
Interest expense $ 48 $ 32 $ 140 $ 146    
Debt issuance costs   6   6    
Unsecured Promissory Note [Member]            
Debt interest rate           11.00%
Secured Note [Member]            
Repayments of notes payable 73 72 217 144    
Interest expense 18 $ 22 58 $ 45    
Secured Promissory Note Agreement [Member] | Tech Capital, LLC [Member]            
Principal amount of secured note payable $ 879   $ 879   $ 1,187  
Debt interest rate 8.00%   8.00%      
Maturity date     Apr. 01, 2023      
Debt instrument, maturity date, description     Principal and interest payments are due on the first day of each month commencing on May 1, 2018.