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Incentive and Non-statutory Stock Option Plan - Summary of Unvested Stock Grants Awarded as Compensation (Details) - $ / shares
3 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Incentive And Non-statutory Stock Option Plan    
Number of shares, Unvested beginning balance 630,228 6,667
Number of shares, Granted 229,646 864,500
Number of shares, Canceled (1,000)  
Number of shares, Vested (148,594) (240,939)
Number of shares, Unvested ending balance 710,280 630,228
Weighted Average Grant Date Fair Value, Unvested beginning balance $ 6.07 $ 6.00
Weighted Average Grant Date Fair Value, Granted 5.92 5.91
Weighted Average Grant Date Fair Value, Canceled 5.09  
Weighted Average Grant Date Fair Value, Vested 5.82 5.51
Weighted Average Grant Date Fair Value, Unvested ending balance $ 6.07 $ 6.07