Note 13 - Income Taxes (Tables)

12 Months Ended

Nov. 30, 2015

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	November 30, 2015			November 30, 2014
Current Expense (benefit)	$	(126,301	)	$	307,452
Deferred expense (benefit)		(180,919	)		59,806
	$	(307,220	)	$	367,258

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	November 30, 2015			November 30, 2014
Statutory federal income tax rate		34.0	%		34.0	%
R&D tax credits		-			(2.0	)
Permanent Differences and Other		1.5			(3.8	)
		35.5	%		28.2	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	November 30
	2015			2014
Current deferred tax assets (liabilities):
Accrued expenses	$	126,000		$	147,000
Inventory capitalization		21,000			22,000
Asset reserves		999,000			1,091,000
Total current deferred tax assets	$	1,146,000		$	1,260,000
Non-current deferrred tax assets
Property, plant, and equipment	$	(847,000	)	$	(1,142,000	)
Total non-current deferred tax assets (liabilities)	$	(847,000	)	$	(1,142,000	)