Note 4 - Inventories - Major Classes of Inventory (Details) - USD ($)	Nov. 30, 2019	Nov. 30, 2018
Raw materials	$ 7,156,001	$ 7,825,278
Work in process	492,125	272,302
Finished goods	3,905,373	5,051,330
Total Gross Inventory	11,553,499	13,148,910
Less: Reserves	(2,774,992)	(2,891,808)
Net Inventory	$ 8,778,507	$ 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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