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2. Significant Accounting Policies: Financial Instruments: Fair Value, Assets Measured on Recurring Basis (Details) - USD ($)
Nov. 30, 2018
Aug. 31, 2018
Nov. 30, 2017
Aug. 31, 2017
Details        
Cash, beginning of period $ 5,427,820 $ 6,097,463 $ 5,560,066 $ 5,912,250
Quoted Prices in Active Markets $ 5,427,820