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12. Segment Information: Schedule of sales by country (Details) - USD ($)
 9 Months Ended
May 31, 2019
May 31, 2018
Details    
United States sales $ 32,343,957 $ 41,148,757
Canada sales 979,510 1,139,399
Mexico/Latin America/Caribbean sales 176,858 192,539
Middle east sales 0 12,209
Europe sales 36,138 27,095
Asia/Pacific sales $ 79,053 $ 170,018