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Note 12 Fair Value Assumptions and Methodology (Details)	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	86.00%	90.60%	85.70%	85.00%
Risk free interest rate	0.90%	1.60%	0.90%	1.70%
Dividend yield	0.00%	0.00%	0.00%	0.00%
Expected life of options (years)	5 years 0 months 0 days	4 years 0 months 0 days	5 years 0 months 0 days	4 years 8 months 12 days

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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