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Stockholders' Equity and Redeemable Convertible Preferred Stock (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Jul. 24, 2017
Mar. 14, 2017
Mar. 04, 2016
Feb. 26, 2016
Sep. 30, 2017
Jun. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Feb. 25, 2016
Reverse Stock Split    

On March 4, 2016, the Company implemented a Reverse Stock Split with a ratio of 1-for-19. The par value and other terms of the common stock were not affected by the Reverse Stock Split.

               
Common stock, shares authorized     200,000,000   100,000,000   100,000,000 100,000,000 100,000,000 100,000,000  
Gross proceeds from issuance of stock               $ 2,095 $ 2,140    
Common stock, par value (in dollars per share)         $ 0.0001     $ 0.0001   $ 0.0001  
Share-based compensation expences         $ 2   $ 54 $ 13 353    
Stock Option [Member]                      
Allocated stock based compensation         2   5 13 26    
Share-based compensation expences         $ 2   $ 54 $ 13 $ 400    
Laidlaw & Company (UK) Ltd. [Member] | Underwriting Agreement [Member]                      
Gross proceeds from issuance of stock $ 2,500                    
Net proceeds from issuance of stock $ 2,100                    
Issuance and sale of common stock 1,250,000                    
Share price $ 2.00                    
Common stock, par value (in dollars per share) $ 0.0001                    
Percentage of estimated offering expenses 8.00%                    
Anthony Hayes [Member] | Restricted Stock Units [Member]                      
Restricted stock units delivered   35,969                  
Number of common stock held for RSU   23,287                  
2014 Equity Incentive Plan [Member]                      
Number of shares available for grant       8,250,000             4,161,892
Total share authorization       434,210              
Reverse Stock Split      

Effectuation of the 1:19 reverse stock split.

             
2014 Equity Incentive Plan [Member] | Four Directors [Member]                      
Shares reserved for future issuance           15,788          
Vesting period           1 year          
Granted in period fair value           $ 12