XML 108 R74.htm IDEA: XBRL DOCUMENT

Note 14 - Shareholders' Equity (Detail) - Weighted Average Fair Value of Options Granted and Black-Scholes Option Valuation Model Assumptions (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Weighted average fair value of options granted (in Dollars per share)	$ 23.38	$ 24.25	$ 17.40
Assumptions:
Risk-free interest rate	0.89%	2.07%	2.25%
Expected dividend yield	1.14%	0.97%	0.00%
Expected stock price volatility	46.00%	46.00%	47.00%
Expected life of options (years)	5 years 36 days	5 years 36 days	4 years 6 months

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.

+ References+ Details