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Stock-Based Compensation Plans (Details)
3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Risk-free interest rates 1.86%
Expected option life in years 5 years 8 months 19 days  
Expected stock price volatility 59.52%
Expected dividend yield 0.00%