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Note 7: Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details) - $ / shares
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Details    
Weighted Average Number of Shares Outstanding, Basic 8,996,321 8,591,363
Stock options under treasury stock method 10,194 28,799
Weighted Average Number of Shares Outstanding, Diluted 9,006,515 8,620,162
Basic earnings per common share $ 0.76 $ 0.57
Diluted earnings per common share $ 0.76 $ 0.56