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Consolidated Statement of Stockholders' Equity - USD ($)
Class A Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income [Member]
Accumulated Deficit [Member]
Total
Balance, beginning at Jun. 30, 2013 $ 129,582 $ 209,645,126 $ 52,736 $ (204,397,808) $ 5,429,636
Balance, beginning, shares at Jun. 30, 2013 12,958,239        
Issuance of common stock for:          
Exercise of warrants, net of costs $ 11,362 1,527,699     1,539,061
Exercise of warrants, shares 1,136,142        
Employee Stock Purchase Plan $ 77 7,336     7,413
Employee Stock Purchase Plan, shares 7,764        
Exercise of RSU or options $ 1,912 (1,912)      
Exercise of RSU or options, shares 191,160        
Reclassification of warrant liability upon warrant exercise   277,070     277,070
Stock based compensation on stock options and restricted stock units   356,815     356,815
Foreign currency translation adjustment     $ (1,055)   (1,055)
Net loss       $ (313,249) (313,249)
Balance, ending at Jun. 30, 2014 $ 142,933 211,812,134 51,681 (204,711,057) 7,295,691
Balance, ending, shares at Jun. 30, 2014 14,293,305        
Issuance of common stock for:          
Employee Stock Purchase Plan $ 110 13,120     13,230
Employee Stock Purchase Plan, shares 10,978        
Private placement of common stock $ 9,308 1,112,746     1,122,054
Private placement of common stock, shares 930,790        
Stock based compensation on stock options and restricted stock units   284,950     284,950
Foreign currency translation adjustment     (1,001)   (1,001)
Net loss       (715,280) (715,280)
Balance, ending at Jun. 30, 2015 $ 152,351 $ 213,222,950 $ 50,680 $ (205,426,337) $ 7,999,644
Balance, ending, shares at Jun. 30, 2015 15,235,073