Note 12 - Income Taxes (Details) - Deferred Tax Assets and Liabilities (USD $)	Nov. 30, 2013	Nov. 30, 2012
Current deferred tax assets (liabilities):
Accrued expenses	$ 168,000	$ 254,000
Inventory capitalization	24,000	8,000
Asset reserves	1,036,000	800,000
Total current deferred tax assets	1,228,097	1,061,806
Non-current deferred tax assets (liabilities):
Property, plant, and equipment	(953,000)	(897,000)
Total non-current deferred tax assets (liabilities)	$ (952,645)	$ (897,492)