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Organization and Significant Accounting Policies - Additional Information (Detail) (USD $)
 1 Months Ended 12 Months Ended 113 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended
Jan. 31, 2011
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Oct. 21, 2011
Employees
Sep. 30, 2010
Dec. 31, 2012
Subsequent Events [Member]
Sep. 30, 2012
Nanotope, Inc [Member]
Sep. 30, 2012
Wisepower [Member]
Sep. 30, 2011
Wisepower [Member]
Sep. 30, 2012
Minimum [Member]
Sep. 30, 2012
Maximum [Member]
Schedule of Investments [Line Items]                        
Cash for fund operation   $ 3,377,288 $ 7,507,389 $ 3,377,288   $ 6,847,162            
Cash position decreased during year   (4,130,101) 660,227 3,377,288                
Cash from issuance of equity   11,000,000         4,300,000          
Proceeds from sale of investments   509,009 1,534,687 3,313,609         500,000      
Proceeds from Revenue   200,000                    
Cash outflow from continuing operations   (15,340,090) (7,655,993) (75,877,796)                
Capital expenditures   500,000                    
Non cash consideration received in sale of interest in subsidiary, shares 2,500,000                      
Non cash consideration received in sale of interest in subsidiary, bonds 2,500,000                      
Non cash consideration received in sale of interest in subsidiary owed to third party 200,000                      
Face value of convertible bond   2,500,000   2,500,000                
Redemption date of bonds   January 17, 2013                    
Subscription Receivable   1,016,000 900,000 1,016,000                
Drawing Limit under Equity Line Facility                   15,000,000    
Proceeds from equity line facility   1,000,000                    
Minimum stock price required to maintain under equity line facility             $ 2,000,000          
Shares issued under public offering             1,900,000          
Shares issued under public offering, price per share             $ 2.26          
Warrant to purchase share of Common Stock             0.5          
Exercise price of warrants             2.20          
Promissory note             500,000          
Promissory note, maturity date   Nov. 26, 2013         Feb. 01, 2013          
Number of employees at the time of acquisition         41              
Accumulated deficit   (134,997,680) (113,871,752) (134,997,680)                
Amount insured in FDIC per account   250,000   250,000                
Property and equipment, useful lives                     3 years 7 years
Percentage of investment ownership               20.00%        
Equity method investments, book value     1,649,748         0        
Minority equity investment, book value   $ 0   $ 0