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Note 15 - Capital Stock and Stock Compensation (Detail) - Stock option valuation assumptions (USD $)	12 Months Ended
	Nov. 26, 2011	Nov. 27, 2010
Weighted average fair value of options on grant date (in Dollars per share)	$ 4.19	$ 2.55
Expected life of options in years	6 years 3 months	6 years 3 months
Risk-free interest rate		2.50%
Expected volatility	60.00%	60.00%
Dividend yield		0.00%
Minimum [Member]
Risk-free interest rate	2.19%
Dividend yield	0.00%
Maximum [Member]
Risk-free interest rate	2.49%
Dividend yield	1.50%

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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