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Financial Condition (Details Textual) (USD $)
 6 Months Ended 1 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2011
May 11, 2005
Dec. 31, 2012
Subsequent Event [Member]
Nov. 30, 2011
Series B Convertible Preferred Stock [Member]
Dec. 31, 2012
Series B Convertible Preferred Stock [Member]
Jun. 30, 2012
Series B Convertible Preferred Stock [Member]
Nov. 30, 2011
Series B Convertible Preferred Stock [Member]
Initial Closing [Member]
Feb. 29, 2012
Series B Convertible Preferred Stock [Member]
Subsequent Closing [Member]
Jun. 30, 2012
Series C Convertible Preferred Stock [Member]
Dec. 31, 2012
Series C Convertible Preferred Stock [Member]
Jun. 30, 2012
Series C Convertible Preferred Stock [Member]
Initial Closing [Member]
Jun. 30, 2012
Series C Convertible Preferred Stock [Member]
Subsequent Closing [Member]
Cash and cash equivalents $ 13,879,872 $ 14,274,985 $ 12,099,083 $ 9,224,023 $ 0                    
Purchase and Sale Of Preferred Stock             500,000                
Preferred stock, par value (in dollars per share)             $ 10.00 $ 0.001 $ 0.001     $ 0.001 $ 0.001    
Sale Of Offering During Period Shares                       5,000      
Purchase Price Per Share                       $ 1,000      
Purchase Of Initial Preferred Stock                   250,000 250,000     2,500 2,500
Purchase Price Amount                   2,500,000 2,500,000     2,500,000 2,500,000
Deficit accumulated during the development stage (32,436,456) (29,424,116)                          
Unsecured Debt           $ 6,000,000                  
Debt Instrument, Interest Rate, Effective Percentage           8.00%                  
Common stock, par value (in dollars per share) $ 0.001 $ 0.001       $ 0.001                  
Debt Instrument, Convertible, Conversion Price           $ 1.00                  
Subsequent Event, Date           Feb. 01, 2013                  
Debt Instrument, Maturity Date           Jan. 31, 2017