Note 3 - Inventories - Major Classes of Inventory (Details) - USD ($)	Nov. 30, 2015	Nov. 30, 2014
Raw materials	$ 10,058,894	$ 10,037,055
Work in process	458,526	467,110
Finished goods	8,204,843	8,504,062
Inventory, gross	18,722,263	19,008,227
Less: Reserves	(3,023,179)	(3,918,947)
Inventory, net	$ 15,699,084	$ 15,089,280

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-02.6(a))
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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
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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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