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Stockholders' Equity (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 9 Months Ended
Sep. 06, 2016
Aug. 26, 2016
Jul. 26, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Dec. 15, 2015
Jun. 24, 2009
Common stock issuance         $ 4,520        
Proceeds from sale of common stock, net of issuance costs         $ 4,694 $ 9,680      
Number of shares granted         247,917 66,666      
Common stock, par value (in dollars per share)         $ 0.001   $ 0.001    
2009 Equity Incentive Plans [Member]                  
Number of authorized shares under plan       1,833,333   1,833,333     1,250,000
Expiration period       10 years          
Vesting period       3 years          
Termination period for few participant       2 years          
Placement Agent [Member]                  
Proceeds from foregoing transaction         $ 4,520        
Engagement Agreement [Member] | Wainwright & Co., LLC ("Wainwright") [Member]                  
Percentage of fixed commissions aggregate gross proceeds     1.00%            
Management fee     $ 70,000            
Engagement Agreement [Member] | Wainwright & Co., LLC ("Wainwright") [Member] | Placement Agent [Member]                  
Percentage of fixed commissions aggregate gross proceeds     7.00%            
Engagement Agreement [Member] | Wainwright & Co., LLC ("Wainwright") [Member] | Placement Agent [Member] | Warrant [Member]                  
Warrant outstanding     166,667            
Percentage of fixed commissions aggregate gross proceeds     5.00%            
Shares issued price per share     $ 1.875            
Equity Distribution Agreement (EDA) [Member] | Chardan Capital Markets, LLC [Member]                  
Percentage of fixed commissions aggregate gross proceeds               3.00%  
Maximum number of shares issued upon transaction   114,394              
Shares issued price per share   $ 0.00              
Proceeds from sale of common stock, net of issuance costs   $ 174              
Securities Purchase Agreement (the "Purchase Agreement") [Member] | Investors [Member]                  
Maximum number of shares issued upon transaction 3,333,334                
Shares issued price per share $ 1.50                
Common stock, par value (in dollars per share) $ 0.001                
Securities Purchase Agreement (the "Purchase Agreement") [Member] | Investors [Member] | Warrant [Member]                  
Maximum number of shares issued upon transaction 2,500,000                
Common stock issuance $ 4,520                
Shares issued price per share $ 2.00                
Proceeds from sale of common stock, net of issuance costs $ 4,520                
Warrant initially exercisable term 6 months                
Warrant exercisable term 5 years