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Consolidated Statement of Shareholders' Equity (Unaudited) (USD $)
Series A Convertible Preferred Stock
Common Stock
Accumulated Deficit
Total
Balance at Jun. 30, 2011 $ 3,138,056 $ 219,772,598 $ (196,785,123) $ 26,125,531
Balance (in shares) at Jun. 30, 2011 442,968 32,281,140    
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Issuance of shares for exercise of warrants at $2.20 per share   10,010   10,010
Issuance of shares for exercise of warrants at $2.20 per share (in shares)   4,550    
Issuance and vesting of shares granted to employees and directors under the 2010 Stock Incentive Plan   215,111   215,111
Issuance and vesting of shares granted to employees and directors under the 2010 Stock Incentive Plan (in shares)   53,612    
Issuance and vesting of shares granted to employees and directors under the 2011 Stock Incentive Plan   295,686   295,686
Issuance and vesting of shares granted to employees and directors under the 2011 Stock Incentive Plan (in shares)   141,666    
Retirement of common stock   (12,041)   (12,041)
Retirement of common stock (in shares)   (10,034)    
Net loss     (2,438,631) (2,438,631)
Balance at Mar. 31, 2012 $ 3,138,056 $ 220,281,364 $ (199,223,754) $ 24,195,666
Balance (in shares) at Mar. 31, 2012 442,968 32,470,934