Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details Textual)

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Stockholders' Equity (Details Textual) (USD $)
1 Months Ended 9 Months Ended
Sep. 12, 2012
Sep. 30, 2012
Apr. 09, 2012
Mar. 15, 2011
Sep. 30, 2010
Dec. 31, 2009
Stockholders' Equity (Textual) [Abstract]            
Exercise price of warrant per share       1.57 0.87 2.13
Stockholders Equity (Additional Textual) [Abstract]            
Purchase and sale of shares of common stock under subscription agreements     6,517,648      
Issuance Costs   $ 500,000        
Fair value of warrants   2,900,000        
Number of common stock sold 3,400,000          
Purchase price of sold common stock 4,250,000          
Per share price of sold common stock $ 1.25          
Allocated to fair value option agreement   $ 0.50        
Accrued Liabilities [Member]
           
Stockholders' Equity (Textual) [Abstract]            
Premium allocated to fair value option agreement   1,700,000        
Series A Warrants [Member]
           
Stockholders' Equity (Textual) [Abstract]            
Purchase and sale of warrants of common stock under subscription agreements     6,517,648      
Exercise price of warrant per share     1.15      
Series B Warrants [Member]
           
Stockholders' Equity (Textual) [Abstract]            
Purchase and sale of warrants of common stock under subscription agreements     6,517,648      
Exercise price of warrant per share     0.85      
Series B warrants to purchase common stock   1,133,824        
Gross proceeds from sale to institutional investor   964,000        
Deerfield Warrant [Member]
           
Stockholders' Equity (Textual) [Abstract]            
Exercise price of warrant per share     1.25      
Institutional Investor [Member]
           
Stockholders' Equity (Textual) [Abstract]            
Gross proceeds from sale to institutional investor   $ 5,540,000