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2. Significant Accounting Policies: Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Details    
Net income for the year $ 2,920,639 $ 2,726,657
Weighted average number of common shares outstanding: Basic 4,430,940 4,545,044
Weighted average number of common shares outstanding: Diluted 4,430,940 4,545,044
Earnings Per Share, Basic and Diluted $ 0.66 $ 0.60