Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details Textual)

v3.7.0.1
Subsequent Events (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended
Apr. 11, 2017
Apr. 03, 2017
Feb. 27, 2017
Apr. 06, 2017
Mar. 31, 2017
Jan. 26, 2017
Nov. 30, 2012
Nov. 08, 2012
Subsequent Event [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights           2,000,000    
Class of Warrant or Right, Exercise Price of Warrants or Rights         $ 5.5138 $ 0.50 $ 5.51 $ 2.19
Private Placement [Member]                
Subsequent Event [Line Items]                
Stock Issued During Period, Shares, New Issues     5,540,000          
Share Price     $ 0.50          
Subsequent Event [Member]                
Subsequent Event [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   236,831   2,000,000        
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 0.44   $ 0.50        
Share Price   $ 0.40            
Class of Warrant or Right, Expiration Date   Mar. 29, 2022            
Subsequent Event [Member] | Perceptive Warrant [Member]                
Subsequent Event [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 0.47        
Subsequent Event [Member] | Securities Purchase Agreement [Member]                
Subsequent Event [Line Items]                
Common Stock, Capital Shares Reserved for Future Issuance 1,004,283              
Subsequent Event [Member] | Securities Purchase Agreement [Member] | Common Stock [Member]                
Subsequent Event [Line Items]                
Stock Issued During Period, Shares, New Issues 380,717              
Subsequent Event [Member] | November 2012 Warrants [Member]                
Subsequent Event [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   362,293            
Class of Warrant or Right, Expiration Date   Apr. 03, 2017            
Subsequent Event [Member] | Underwritten Public Offering [Member]                
Subsequent Event [Line Items]                
Stock Issued During Period, Shares, New Issues   9,473,250            
Share Price   $ 0.40            
Stock Issued During Period, Value, New Issues   $ 3.8