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Stockholders' Equity (Deficit) (Details Textual) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Feb. 02, 2019
Stockholders' Equity (Deficit) (Textual)      
Total unrecognized compensation cost $ 112    
Weighted average period 1 year 5 months 9 days    
Estimated average forfeiture rate 13.40% 5.91%  
Ascribed a value of warrants $ 47   $ 212
Exercise price     $ 0.50
Warrants term 3 years    
Warrants to purchase     985
Stock options [Member]      
Stockholders' Equity (Deficit) (Textual)      
Granted, shares 40 393  
Granted, weighted average exercise price per share $ 0.50 $ 0.78