Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.5.0.2
Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Oct. 21, 2016
Oct. 18, 2016
Apr. 19, 2016
Mar. 31, 2016
Subsequent Event Items        
Number of common stock shares available in public offering     2,700,000  
Net proceeds from equity issuances       $ 12.7
Subsequent event        
Subsequent Event Items        
Number of common stock shares available in public offering   3,600,000    
Net proceeds from equity issuances $ 6.8      
Series A Warrants        
Subsequent Event Items        
Number of shares of common stock that could be purchased with warrants     4,100,000  
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 3.50  
Series A Warrants | Subsequent event        
Subsequent Event Items        
Number of shares of common stock that could be purchased with warrants   6,300,000    
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 1.34    
Series B Warrants        
Subsequent Event Items        
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 3.48  
Series B Warrants | Subsequent event        
Subsequent Event Items        
Number of shares of common stock that could be purchased with warrants   2,700,000    
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 1.20    
Exercise price of warrants, pre-funded at closing   1.19    
Exercise price of warrants, payable upon exercise   0.01    
Common Stock | Subsequent event        
Subsequent Event Items        
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 1.20    
Maximum | Series B Warrants        
Subsequent Event Items        
Number of shares of common stock that could be purchased with warrants     5,500,000