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12. Segment Information: Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Details) - USD ($)
 6 Months Ended
Feb. 28, 2018
Feb. 28, 2017
Details    
United States sales $ 21,679,684 $ 18,635,193
Canada sales 759,136 866,057
Mexico/Latin America sales 159,436 362,556
Europe sales $ 118,059 $ 44,875