Note 14 - Capital Stock and Stock Compensation (Details) - Changes In Outstanding Options (USD $)	12 Months Ended
	Nov. 30, 2013
Changes In Outstanding Options [Abstract]
Outstanding at November 24, 2012	785,100
Outstanding at November 24, 2012 (in Dollars per share)	$ 14.55
Exercised	(46,000)
Exercised (in Dollars per share)	$ 7.10
Forfeited/Expired	(4,000)
Forfeited/Expired (in Dollars per share)	$ 4.38
Outstanding at November 30, 2013	735,100
Outstanding at November 30, 2013 (in Dollars per share)	$ 15.08
Exercisable at November 30, 2013	648,600
Exercisable at November 30, 2013 (in Dollars per share)	$ 16.25