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2. Significant Accounting Policies: Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
3 Months Ended
Nov. 30, 2017
Nov. 30, 2016
Details    
Net income $ 322,433 $ 485,920
Weighted Average Number of Shares Issued, Basic 2,234,494 2,286,294
Weighted average number of common shares outstanding: Diluted 2,234,494 2,286,294