Note 4 - Inventory (Details) - Major Classes Of Inventory (USD $)	Aug. 31, 2013	Nov. 30, 2012
Major Classes Of Inventory [Abstract]
Raw materials	$ 9,738,444	$ 8,466,060
Work in process	310,240	632,969
Finished goods	6,547,618	7,694,528
	16,596,302	16,793,557
Less: Reserves	(2,901,466)	(2,466,075)
	$ 13,694,836	$ 14,327,482