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Stock-Based Compensation (Details 2) - $ / shares
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Stock options information    
Stock options outstanding, option outstanding 53,700 66,200
Stock options outstanding weighted average remaining contractual life 2 years 5 months 3 years 5 months
Stock options exercisable option outstanding 53,700  
Stock options exercisable weighted average exercise price $ 10.19  
Stock options exercisable weighted average remaining contractual life 2 years 5 months