Note 4 - Inventories - Major Classes of Inventory (Details) - USD ($)	Nov. 30, 2018	Nov. 30, 2017
Raw materials	$ 7,825,278	$ 8,731,985
Work in process	272,302	460,687
Finished goods	5,051,330	5,395,353
Total Gross Inventory	13,148,910	14,588,025
Less: Reserves	(2,891,808)	(2,621,303)
Net Inventory	$ 10,257,102	$ 11,966,722

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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