Export Sales (Tables)

12 Months Ended

Nov. 30, 2018

Segment Reporting [Abstract]

Schedule of export sales

	Nine Months Ended
	August 31,		August 31,
	2018		2017
Canada	$	3,033,031	$	2,945,872
China	$	3,480,461	$	3,506,149
Other Asian Countries	$	1,341,707	$	1,391,537
South America	$	314,118	$	300,130
Europe	$	756,985	$	1,042,237