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EMPLOYEE AND DIRECTOR EQUITY INCENTIVE PLANS (Details)
6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Expected life of option (years) 4 years 4 years
Risk-free interest rate, minimum 1.59% 0.93%
Risk-free interest rate, maximum 2.09% 1.14%
Assumed volatility, minimum 108.66% 104.69%
Assumed volatility, maximum 113.98% 108.35%
Expected dividend rate 0.00% 0.00%
Expected forfeiture rate, minimum 6.15% 7.42%
Expected forfeiture rate, maximum 7.46% 9.18%