XML 27 R27.htm IDEA: XBRL DOCUMENT v2.4.0.8
Organization and Basis of Presentation - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended 122 Months Ended
May 31, 2013
Jan. 31, 2013
Dec. 31, 2012
Aug. 10, 2012
Jun. 30, 2013
Jun. 30, 2013
Jun. 30, 2012
Sep. 30, 2012
Jun. 30, 2013
Sep. 30, 2011
Schedule Of Investments [Line Items]                    
Cash for fund operations         $ 29,025,930 $ 29,025,930 $ 2,282,641 $ 3,377,288 $ 29,025,930 $ 7,507,389
Net increase decrease in cash           25,648,642 (5,224,748)   29,025,930  
Cash from issuance of equity 36,000,000 3,300,000 3,800,000   1,200,000 42,400,000        
Other cash collections           1,600,000        
Cash outflow from continuing operations           (13,639,360) (10,752,290)   (89,517,156)  
Drawing Limit under Equity Line Facility                   15,000,000
Minimum stock price required to maintain under equity line facility                   $ 2.00
Proceeds from equity line facility               1,000,000    
Shares issued under public offering   1,667,051 1,800,000.0   1,170,000          
Shares issued under public offering, price per share   $ 2.12 $ 2.26              
Unit sold, description   Each unit consisted of one share of Common Stock and a warrant to purchase Each unit consisted of one share of Common Stock and a warrant to purchase              
Warrant to purchase share of Common Stock   0.5 0.5              
Exercise price of warrant   1.83     1.83 1.83     1.83  
Issuance and sold of stock 14,300,000.0     2,260,869            
Sale of stock, price per share $ 1.83     $ 2.76            
Proceeds from issuance of common stock and warrants, net 35,400,000 3,500,000   6,200,000   42,448,824 5,401,392   148,701,835  
Reverse stock split           0.1        
Short term investments         4,058,003 4,058,003   106,500 4,058,003  
Gross unrealized losses           17,208        
Fair value of investments         4,040,795 4,040,795     4,040,795  
Gross unrealized gains           $ 0        
Series B convertible preferred stock
                    
Schedule Of Investments [Line Items]                    
Issuance and sold of stock 9,900                  
Sale of stock, price per share $ 1,000                  
Conversion price $ 1.83                  
Warrants Issued
                    
Schedule Of Investments [Line Items]                    
Exercise price of warrant         1.83 1.83     1.83