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SHAREHOLDERS’ EQUITY - Common Stock - Investor Warrants - Weighted Average Assumptions (Details)
12 Months Ended
Jun. 30, 2017
Weighted average assumptions:  
Expected dividend yield (as a percent) 0.00%
Common Unit Investor Warrant  
Weighted average assumptions:  
Expected term (in years) 1 year 11 months 5 days
Expected volatility (as a percent) 76.00%
Risk-free interest rate (as a percent) 1.37%
Expected dividend yield (as a percent) 0.00%