Note 4 - Inventory (Details) - Major Classes of Inventory (USD $)	Aug. 31, 2014	Nov. 30, 2013
Major Classes of Inventory [Abstract]
Raw materials	$ 10,366,665	$ 10,322,014
Work in process	349,359	511,016
Finished goods	7,721,692	7,305,301
	18,437,716	18,138,331
Less: Reserves	(3,467,690)	(3,215,806)
	$ 14,970,026	$ 14,922,525