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4. Property, Plant and Equipment: Property, Plant and Equipment (Details) - USD ($)
Aug. 31, 2019
Aug. 31, 2018
Details    
Office equipment $ 486,038 $ 473,702
Warehouse equipment 1,265,532 1,313,714
Buildings 4,072,741 4,090,527
Land 559,065 761,924
Property, Plant and Equipment, Gross 6,383,376 6,639,867
Accumulated depreciation property plant and equipment (3,655,970) (3,534,607)
Net book value $ 2,727,406 $ 3,105,260