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Stockholders' Equity (Details 4) - Warrants [Member] - $ / shares
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Shares, Outstanding and vested 5,362,183 8,628,911
Number of Shares, Granted   173,643
Number of Shares, Exercised (1,137,610) (2,040,277)
Number of Shares, Forfeited   (1,400,094)
Number of Shares, Outstanding and vested 4,224,573 5,362,183
Weighted Average Exercise Price Per Share, Outstanding and vested $ 5.60 $ 6.40
Weighted Average Exercise Price Per Share, Granted   4.00
Weighted Average Exercise Price Per Share, Exercised 0.27 7.50
Weighted Average Exercise Price Per Share, Forfeited   7.50
Weighted Average Exercise Price Per Share, Outstanding and vested $ 7.04 $ 5.60