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4. Property, Plant and Equipment: Property, Plant and Equipment (Details) - USD ($)
Aug. 31, 2018
Aug. 31, 2017
Details    
Office equipment $ 473,702 $ 561,090
Warehouse equipment 1,313,714 1,290,838
Buildings and Improvements, Gross 4,090,527 4,097,438
Land 761,924 761,924
Property, Plant and Equipment, Gross 6,639,867 6,711,290
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment (3,534,607) (3,488,718)
Property, plant and equipment, net [1] $ 3,105,260 $ 3,222,572
[1] Note 4