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4. Property, Plant and Equipment: Property, Plant and Equipment (Details) - USD ($)
May 31, 2020
Aug. 31, 2019
Details    
Office equipment $ 573,977 $ 486,038
Warehouse equipment 1,271,481 1,265,532
Buildings 4,088,328 4,072,741
Land 559,065 559,065
Property, Plant and Equipment, Gross 6,492,851 6,383,376
Accumulated depreciation property plant and equipment (3,717,939) (3,655,970)
Net book value $ 2,774,912 $ 2,727,406