Note 6 - Inventory - Major Classes of Inventory (Details) - USD ($)	May 31, 2021	Nov. 30, 2020
Raw materials	$ 8,737,075	$ 7,086,367
Work in process	280,389	304,009
Finished goods	3,841,124	3,777,136
Total Gross Inventory	12,858,588	11,167,512
Less: Reserves	(3,862,327)	(3,405,112)
Net Inventory	$ 8,996,261	$ 7,762,400

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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