Note 15 - Capital Stock and Stock Compensation (Detail) - Restricted stock awards (USD $)	12 Months Ended
	Nov. 27, 2010 May 3, 2010 [Member]	Nov. 27, 2010 July 14, 2010 [Member]	Nov. 26, 2011 March 7, 2011 [Member]	Nov. 26, 2011 May 2, 2011 [Member]	Nov. 26, 2011 July 13, 2011 Grant A [Member]	Nov. 26, 2011 July 13, 2011 Grant B [Member]	Nov. 24, 2012 May 1, 2012 [Member]	Nov. 24, 2012 July 13, 2012 [Member]
Restricted shares granted	17,528	43,000	4,000	11,760	4,200	75,000	11,184	1,398
Share value at grant date per share (in Dollars per share)	$ 5.99	$ 4.38	$ 8.15	$ 8.93	$ 8.02	$ 8.02	$ 10.73	$ 11.69
Restricted period (years)	1 year	3 years	3 years	1 year	1 year	3 years	1 year	1 year