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Export Sales (Tables)
12 Months Ended
Nov. 30, 2019
Segment Reporting [Abstract]  
Schedule of export sales
   Year Ended 
   November 30,   November 30, 
   2019   2018 
Canada   4,233,319    4,250,717 
China   5,828,541    4,838,884 
Other Asian Countries   2,109,843    1,690,734 
South America   527,183    407,894 
Europe   1,390,715    1,012,220