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13. Segment Information: Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Details) - USD ($)
 9 Months Ended
May 31, 2016
May 31, 2015
Details    
United States sales $ 34,666,374 $ 29,044,754
Canada sales 1,051,116 919,603
Mexico/Latin America sales 1,774,158 744,775
Middle East sales 11,686 12,164
Africa sales   2,960
Asia/Pacific sales $ 85,020 $ 31,173