Note 5 - Inventory - Major Classes of Inventory (Details) - USD ($)	Feb. 28, 2018	Nov. 30, 2017
Raw materials	$ 8,275,782	$ 8,731,985
Work in process	742,276	460,687
Finished goods	4,618,064	5,395,353
Gross inventory	13,636,122	14,588,025
Less: Reserves	(2,567,617)	(2,621,303)
Net Inventory	$ 11,068,505	$ 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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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

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