Note 6 - Inventories - Major Classes of Inventory (Details) - USD ($)	Aug. 31, 2019	Nov. 30, 2018
Raw materials	$ 7,341,067	$ 7,825,278
Work in process	451,970	272,302
Finished goods	4,648,778	5,051,330
Gross inventory	12,441,815	13,148,910
Less: Reserves	(2,678,901)	(2,891,808)
Net Inventory	$ 9,762,914	$ 10,257,102

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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