Export Sales (Details) - Schedule of export sales - USD ($)	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Canada [Member]
Revenue from External Customer [Line Items]
Export sales	$ 954,765	$ 636,417
China [Member]
Revenue from External Customer [Line Items]
Export sales	1,308,802	1,153,406
Other Asian Countries [Member]
Revenue from External Customer [Line Items]
Export sales	413,640	214,762
South America [Member]
Revenue from External Customer [Line Items]
Export sales	37,477	115,022
Europe [Member]
Revenue from External Customer [Line Items]
Export sales	$ 431,570	$ 283,762