Note 4 - Inventory - Major Classes of Inventory (Details) - USD ($)	May. 31, 2015	Nov. 30, 2014
Raw materials	$ 10,440,327	$ 10,037,055
Work in process	553,631	467,110
Finished goods	8,684,721	8,504,062
	19,678,679	19,008,227
Less: Reserves	(3,707,422)	(3,918,947)
	$ 15,971,257	$ 15,089,280