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Stock-Based Compensation (Details 2) - $ / shares
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Stock options information    
Stock options outstanding, option outstanding 66,200 97,250
Stock options outstanding weighted average remaining contractual life 3 years 5 months 4 years 5 months
Stock options exercisable option outstanding 66,200  
Stock options exercisable weighted average exercise price $ 10.19  
Stock options exercisable weighted average remaining contractual life 3 years 5 months