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Stockholders' Equity (Schedule Of Weighted Average Assumptions Used In Calculating Share-Based Compensation Expense) (Details)	12 Months Ended
	Sep. 27, 2013	Sep. 28, 2012	Sep. 30, 2011
Stockholders' Equity Note [Abstract]
Expected volatility	57.71%	59.21%	49.26%
Risk free interest rate (7 year contractual life options)	1.29%	0.52%	0.63%
Dividend yield	0.00%	0.00%	0.00%
Expected option life (7 year contractual life options)	4 years 2 months	4 years 1 month	4 years 1 month

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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