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Earnings per share
6 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
3. Earnings per share
 
Basic earnings per share are based on the weighted average number of shares of all common stock outstanding during the period. Diluted earnings per share are based on the sum of the weighted average number of shares of common stock and common stock equivalents outstanding during the period. The number of basic and diluted shares outstanding for the three and six months ended December 31, 2015 and 2014 were 8,027,147.