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Stockholders' Deficit (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 2 Months Ended 12 Months Ended 14 Months Ended
Dec. 08, 2016
Apr. 29, 2016
Apr. 07, 2016
May 31, 2016
Apr. 30, 2016
Nov. 30, 2015
Jun. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Jun. 30, 2016
Nov. 10, 2015
Common stock, authorized               100,000,000 100,000,000   100,000,000
Common stock, par value (in dollars per share)               $ 0.001 $ 0.001   $ 0.001
Preferred stock, authorized                 15,000,000   10,000,000
Preferred stock, par value (in dollars per share)                     $ 0.001
Common stock, issued               10,157,292 4,108,766    
Common stock, outstanding               10,157,292 4,108,766    
Common stock, voting rights              

The holders of shares of common stock are entitled to one vote per share on all matters submitted to a vote of the stockholders.

      
Preferred stock, voting rights              

The holders of outstanding shares of common stock are not entitled to receive any dividends.

      
Number of shares issued               13,320      
Proceeds from issuance of common stock               $ 18,832    
Net consideration of shares issued               $ 295      
Stock Options and Warrants [Member]                      
Number of shares issued               630,935      
Proceeds from issuance of common stock               $ 521      
Stock Options [Member]                      
Number of shares issued                 390,873    
Proceeds from issuance of common stock                 $ 78    
Initial Public Offering [Member]                      
Number of shares issued 1,875,000                    
Net consideration of shares issued $ 12,600                    
Rights Offering [Member]                      
Number of shares issued   2,478,486     5,794,162            
Proceeds from issuance of common stock   $ 5,284                  
Net consideration of shares issued   6,199                  
Subscription price (in dollars per share)         $ 2.50            
6% Unsecured Promissory Note [Member]                      
Principal value     $ 27                
Number of shares issued     54,000                
2016 Unsecured Notes [Member]                      
Surrendered as consideration for purchase       124,000              
Subscription price (in dollars per share)       $ 2.50              
Unsecured Promissory Note 2015 and 2016 [Member] | Rights Offering [Member]                      
Proceeds from cancellation of outstanding principal amount   821                  
Extinguishment of debt   $ 94                  
2014 Convertible Promissory Notes [Member]                      
Principal value             $ 452        
Number of shares issued             71,446     71,446  
Conversion price, principal (in dollars per share)             $ 7.50        
Conversion Price, interest (in dollars per share)             $ 5.00        
Other Convertible Notes [Member]                      
Principal value           $ 68          
Number of shares issued           8,971          
Series A Preferred Stock [Member]                      
Preferred stock, authorized               2,000,000      
Preferred stock, par value (in dollars per share)               $ 0.001      
Preferred stock, voting rights              

Each holder of the Series A convertible preferred stock is entitled to the number of votes equal to the number of shares of common stock into which such shares of Series A convertible preferred stock could be converted. The preferred stockholders shall vote as a separate class to (i) approve amendments to the Certificate of Incorporation, (ii) authorization of any new classes of stock, and (iii) any asset transfers or acquisitions or any voluntary dissolution or liquidation of the Company.

 

For so long as any shares of preferred stock remain outstanding, the holders of the Series A convertible preferred stock may appoint one member of the Board in a nonvoting observer capacity. 

      
Series B Preferred Stock [Member]                      
Preferred stock, authorized                 7,515,000    
Preferred stock, par value (in dollars per share)                 $ 0.001    
Preferred stock, voting rights              

Each holder of the Series B convertible preferred stock is entitled to the number of votes equal to the number of shares of common stock into which such shares of Series A convertible preferred stock could be converted. The holders of shares of Series B convertible preferred stock are entitled to vote on all matters submitted to the vote of the stockholders.

      
Number of shares issued               115,668 312,861    
Net consideration of shares issued               $ 896