Note 13 Stock Options Outstanding (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 29, 2012
$1.50 to $2.94 [Member]
Stock Option Oustanding by Exercise Price Range [Line Items]
Number of Outstanding Options	1,023
Outstanding Options, Weighted Average Remaining Contractual Term	6 years 3 months 5 days
Outstanding Options, Weighted Average Exercise Price	$ 2.40
Number of Exercisable Options	931
Weighted Average Exercise Price	$ 2.46
$2.95 to $4.45 [Member]
Stock Option Oustanding by Exercise Price Range [Line Items]
Number of Outstanding Options	1,786
Outstanding Options, Weighted Average Remaining Contractual Term	6 years 9 months 9 days
Outstanding Options, Weighted Average Exercise Price	$ 4.45
Number of Exercisable Options	1,233
Weighted Average Exercise Price	$ 4.45
$4.46 to $8.79 [Member]
Stock Option Oustanding by Exercise Price Range [Line Items]
Number of Outstanding Options	2,238
Outstanding Options, Weighted Average Remaining Contractual Term	6 years 9 months 13 days
Outstanding Options, Weighted Average Exercise Price	$ 8.65
Number of Exercisable Options	983
Weighted Average Exercise Price	$ 8.68
$8.80 to $11.23 [Member]
Stock Option Oustanding by Exercise Price Range [Line Items]
Number of Outstanding Options	1,734
Outstanding Options, Weighted Average Remaining Contractual Term	8 years 7 months 18 days
Outstanding Options, Weighted Average Exercise Price	$ 10.61
Number of Exercisable Options	518
Weighted Average Exercise Price	$ 10.44
$11.24 to $15.91[Member]
Stock Option Oustanding by Exercise Price Range [Line Items]
Number of Outstanding Options	1,706
Outstanding Options, Weighted Average Remaining Contractual Term	6 years 10 months 4 days
Outstanding Options, Weighted Average Exercise Price	$ 13.90
Number of Exercisable Options	1,191
Weighted Average Exercise Price	$ 13.28
$15.92 to $21.12 [Member]
Stock Option Oustanding by Exercise Price Range [Line Items]
Number of Outstanding Options	1,616
Outstanding Options, Weighted Average Remaining Contractual Term	4 years 9 months 27 days
Outstanding Options, Weighted Average Exercise Price	$ 20.81
Number of Exercisable Options	1,572
Weighted Average Exercise Price	$ 20.91
$21.13 to $83.10 [Member]
Stock Option Oustanding by Exercise Price Range [Line Items]
Number of Outstanding Options	1,172
Outstanding Options, Weighted Average Remaining Contractual Term	2 years 10 months 7 days
Outstanding Options, Weighted Average Exercise Price	$ 36.52
Number of Exercisable Options	1,172
Weighted Average Exercise Price	$ 36.52
$1.50 to $83.10 [Member]
Stock Option Oustanding by Exercise Price Range [Line Items]
Number of Outstanding Options	11,275
Outstanding Options, Weighted Average Remaining Contractual Term	6 years 6 months 14 days
Outstanding Options, Weighted Average Exercise Price	$ 13.15
Number of Exercisable Options	7,600
Weighted Average Exercise Price	$ 14.89