Note 4 - Inventory - Major Classes of Inventory (Details) - USD ($)	Aug. 31, 2015	Nov. 30, 2014
Raw materials	$ 10,521,170	$ 10,037,055
Work in process	444,320	467,110
Finished goods	9,116,182	8,504,062
Inventory, gross	20,081,672	19,008,227
Less: Reserves	(3,588,106)	(3,918,947)
Inventory, net	$ 16,493,566	$ 15,089,280