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Secured Note Payable (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Mar. 27, 2018
Interest expense $ 32 $ 88 $ 146 $ 218  
Unsecured Promissory Note [Member]          
Debt interest rate 11.00%   11.00%    
Secured Note [Member]          
Repayments of notes payable $ 72   $ 144    
Interest expense $ 22   45    
Secured Promissory Note Agreement [Member] | Tech Capital, LLC [Member]          
Principal amount of secured note payable         $ 1,187
Principal balance of line of credit     $ 1,088    
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.    
Debt issuance costs $ 6   $ 6