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Net Income (Loss) Per Share (Details) (USD $)
 3 Months Ended 12 Months Ended
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Numerator                      
Net income (loss) attributable to common shareholders $ 944,012 $ 2,228,467 $ 1,790,696 $ 990,951 $ 926,581 $ 1,299,525 $ 1,259,950 $ 1,015,683 $ 5,954,126 $ 4,501,739 $ (241,553)
Denominator                      
Weighted average number of common shares - Basic                 28,205,467 27,784,298 27,437,496
Effect of dilutive securities:                      
Common stock warrants issued in connection with equity and financing transactions (in shares)                 878 63,319  
Stock Options and Incentive Warrants (in shares)                 3,768,786 3,762,312  
Total weighted average dilutive securities (in shares)                 3,769,664 3,825,631  
Weighted average number of common shares and dilutive potential common shares used in diluted EPS                 31,975,131 31,609,929 27,437,496
Net income (loss) per common share - Basic (in dollars per share) $ 0.03 $ 0.08 $ 0.06 $ 0.04 $ 0.03 $ 0.05 $ 0.05 $ 0.04 $ 0.21 $ 0.16 $ (0.01)
Net income (loss) per common share - Diluted (in dollars per share) $ 0.03 $ 0.07 $ 0.06 $ 0.03 $ 0.03 $ 0.04 $ 0.04 $ 0.03 $ 0.19 $ 0.14 $ (0.01)