Annual report pursuant to Section 13 and 15(d)

Warrant Liability (Details Textual)

v3.6.0.2
Warrant Liability (Details Textual) - USD ($)
 1 Months Ended 2 Months Ended 12 Months Ended
Apr. 09, 2012
Mar. 15, 2011
Sep. 29, 2015
Oct. 31, 2014
Jun. 30, 2016
Mar. 31, 2013
Dec. 31, 2016
Dec. 31, 2013
Dec. 31, 2012
Apr. 30, 2012
Class of Warrant or Right [Line Items]                    
Investment Warrants Expiration Date                 Oct. 31, 2012  
Notional Liquidation Damages             $ 2,500,000      
Underwritten Public Offering, Description of Units Issued       consisting of one share of common stock and 0.75 of a warrant (“Class A Warrant”)            
Stockholders' Equity, Reverse Stock Split     Board effected the Reverse Split of the outstanding shares of our common stock at a ratio of one (1) share for every five and one-half (5.5) shares outstanding, so that every five and one-half (5.5) outstanding shares of common stock before the Reverse Split represents one (1) share of common stock after the Reverse Split.       1 for 5.5 reverse stock split effected in September 2015      
Institutional Investor [Member]                    
Class of Warrant or Right [Line Items]                    
Warrants To Purchase Common Stock Shares 1,185,034                  
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 4.67                  
Institutional Investor [Member] | Common Stock [Member]                    
Class of Warrant or Right [Line Items]                    
Stock Issued During Period Shares Private Placement 1,185,034                  
Series A Warrants [Member]                    
Class of Warrant or Right [Line Items]                    
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 4.89            
Class of Warrant or Right Exercised During Period               201,639    
Proceeds from Warrant Exercises               $ 1,275,000    
Class Of Warrant Or Right Subject To Expiry               983,395    
Investment Warrants Expiration Date               Apr. 30, 2018    
Series A Warrants [Member] | Minimum [Member]                    
Class of Warrant or Right [Line Items]                    
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 4.89                  
Series A Warrants [Member] | Maximum [Member]                    
Class of Warrant or Right [Line Items]                    
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 6.32                  
Series A Warrants [Member] | Institutional Investor [Member]                    
Class of Warrant or Right [Line Items]                    
Warrants To Purchase Common Stock Shares 1,185,034                  
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 6.32                  
Deerfield Warrant [Member]                    
Class of Warrant or Right [Line Items]                    
Warrants To Purchase Common Stock Shares   1,090,910                
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 8.64               $ 6.88
Debt Instrument, Increase (Decrease), Net, Total           $ 7,500,000        
Class A Warrant [Member]                    
Class of Warrant or Right [Line Items]                    
Warrants To Purchase Common Stock Shares       2,863,643            
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 3.30            
Class of Warrant or Right Exercised During Period         2,016,075          
Underwriter Warrant [Member]                    
Class of Warrant or Right [Line Items]                    
Warrants To Purchase Common Stock Shares             114,546      
Class of Warrant or Right, Exercise Price of Warrants or Rights             $ 3.30      
Class of Warrant or Right Exercised During Period         114,546