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Consolidated Statements of Shareholders' Equity (Parentheticals) (USD $)
 12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Statement Of Stockholders Equity [Abstract]      
Issuance of common stock per share, less issuance costs   $ 0.90 $ 2.00
Issuance cost of common stock   $ 230,087 $ 1,613,425
Issuance of common stock per share   $ 2.064 $ 0.90
Issuance cost of common stock   838,705 504,095
Fair value of warrants issued   1,917,122  
Number of warrants exercised 4,550 376,355  
Exercise price of warrants $ 2.20 $ 2.2  
Exercise of warrants at $1.13 in the issuance of common stock   497,367  
Par value exercise of 497,367 warrants   $ 1.13  
Cashless exercise of warrants resulting in the issuance of common stock 2,767 127,497  
Conversion of preferred stock into common stock   $ 33,000