Note 11 - Income Taxes (Tables)

12 Months Ended

Nov. 30, 2014

Notes Tables

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

	November 30
	2014		2013
Current Expense	$	307,452	$	765,606
Deferred expense (benefit)		59,806		(111,138	)
	$	367,258	$	654,468

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

	November 30
	2014			2013
Statutory federal income tax rate		34.0	%		34.0	%
R&D tax credits		(2.0	)		(1.0	)
Permanent Differences and Other		(3.8	)		(3.3	)
		28.2	%		29.7	%

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

	November 30
	2014			2013
Current deferred tax assets (liabilities):
Accrued expenses	$	147,000		$	168,000
Inventory capitalization		22,000			24,000
Asset reserves		1,091,000			1,036,000
Total current deferred tax assets	$	1,260,000		$	1,228,000
Non-current deferred tax assets
Property, plant, and equipment	$	(1,142,000	)	$	(953,000	)
Total non-current deferred tax assets (liabilities)	$	(1,142,000	)	$	(953,000	)