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Restricted Cash (Details Narrative) - USD ($)
$ in Thousands
1 Months Ended
Sep. 30, 2018
Dec. 01, 2019
Sep. 30, 2019
Dec. 31, 2018
Short-term restricted cash     $ 51 $ 50
Loan and Security Agreement [Member] | Avidbank [Member]        
Aggregate amount of unrestricted cash to be maintained $ 2,000      
Loan and Security Agreement [Member] | Avidbank [Member] | Minimum [Member]        
Aggregate amount of unrestricted cash to be maintained $ 2,000      
Avidbank [Member]        
Line of credit facility     250  
Deposit     250  
Short-term restricted cash     $ 50  
Avidbank [Member] | Forecast [Member]        
Reduction in line of credit facility   $ 50