Note 13 - Deferred Tax Assets and Liabilities (Details) - USD ($)	Nov. 30, 2015	Nov. 30, 2014
Accrued expenses	$ 126,000	$ 147,000
Inventory capitalization	21,000	22,000
Asset reserves	999,000	1,091,000
Total current deferred tax assets	1,146,242	1,259,943
Property, plant, and equipment	(847,000)	(1,142,000)
Total non-current deferred tax assets (liabilities)	$ (846,960)	$ (1,141,580)