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Stock Option Plan (Details) - 12 months ended Jun. 30, 2015 - Stock Option - $ / shares
Total
Shares  
Outstanding, June 30, 2014 1,498,380
Granted  
Exercised (112,840)
Forfeited or expired  
Outstanding, June 30, 2015 1,385,540
Exercisable, June 30, 2015 1,385,540
Weighted- Average Exercise Price Per Share  
Outstanding, June 30, 2014 $ 11.83
Granted  
Exercised $ 11.83
Forfeited or expired  
Outstanding, June 30, 2015 $ 11.83
Exercisable, June 30, 2015 $ 11.83