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Common Stock Incentive, Stock Purchase Plans, and Other Compensation Plans - Fair Value Assumptions (Details) - $ / shares
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Expected Dividend Yield 0.00% 0.00%
Expected Volatility 124.00% 109.00%
Risk-Free Interest Rates 2.42% 0.65%
Expected Option Life (in years) 6 years 7 months 11 days 8 years 8 months 16 days
Weighted-average grant-date fair value of options awarded (in dollars per share) $ 1.23 $ 1.18