XML 38 R29.htm IDEA: XBRL DOCUMENT v3.19.1
Export Sales (Tables)
3 Months Ended
Feb. 28, 2019
Segment Reporting [Abstract]  
Schedule of export sales
   Three Months Ended 
   February 28,   February 28, 
   2019   2018 
Canada   1,092,398    840,641 
China   1,513,169    1,000,865 
Other Asian Countries   445,435    303,530 
South America   81,621    123,335 
Europe   326,913    224,315