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Statements Of Stockholders' Equity (USD $)
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Accumulated Other Comprehensive Loss [Member]
Total
Balance at Sep. 30, 2009 $ 16,751 $ 14,920,999 $ (14,811,985)   $ 125,765
Balance, shares at Sep. 30, 2009 16,751,137        
Discount on convertible debt   627,636     627,636
Issuance of common stock 460 344,540     345,000
Issuance of common stock, shares 460,000        
Exercise of warrants 164 148,755     148,919
Exercise of warrants, shares 163,646        
Exercise of stock options 72 30,151     30,223
Exercise of stock options, shares 72,488        
Cashless exercise of warrants 300 (300)      
Cashless exercise of warrants, shares 300,012        
Cashless exercise of stock options 69 (69)      
Cashless exercise of stock options, shares 68,966        
Stock-based compensation expense   406,269     406,269
Components of comprehensive income:          
Net loss     (682,353)   (682,353)
Balance at Sep. 30, 2010 17,816 16,477,981 (15,494,338)   1,001,459
Balance, shares at Sep. 30, 2010 17,816,249       17,816,249
Conversion of debentures 1,419 1,062,507     1,063,926
Conversion of debentures, shares 1,418,573        
Issuance of common stock 3,357 14,592,009     14,595,366
Issuance of common stock, shares 3,357,143        
Exercise of warrants 651 219,646     220,297
Exercise of warrants, shares 41,666        
Exercise of stock options 42 37,875     37,917
Exercise of stock options, shares 651,951        
Cashless exercise of warrants 616 (616)      
Cashless exercise of warrants, shares 615,448        
Cashless exercise of stock options 243 (243)      
Cashless exercise of stock options, shares 243,336        
Stock-based compensation expense   1,271,238     1,271,238
Components of comprehensive income:          
Net loss     (125,057)   (125,057)
Change in unrealized loss on investments       (9,855) (9,855)
Total comprehensive loss         (134,912)
Balance at Sep. 30, 2011 $ 24,144 $ 33,660,397 $ (15,619,395) $ (9,855) $ 18,055,291
Balance, shares at Sep. 30, 2011 24,144,366       24,144,366