Note 8 - Stock-Based Compensation (Details) - Stock Option Activity (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011	Oct. 02, 2010
Note 8 - Stock-Based Compensation (Details) - Stock Option Activity [Line Items]
Options Outstanding (in Shares)	918	1,160	994	847
Contractual Term Weighted Average	6 years 3 months
Aggregate Intrinsic Value (in Dollars)	$ 3,492
Vested and anticipated to vest in future at September 28, 2013 (in Shares)	913
Vested and anticipated to vest in future at September 28, 2013	6 years 83 days
Vested and anticipated to vest in future at September 28, 2013 (in Dollars)	3,480
Exercisable at September 28, 2013 (in Shares)	626
Exercisable at September 28, 2013	5 years 3 days
Exercisable at September 28, 2013 (in Dollars)	2,744
Options Outstanding (in Shares)	131	178	171
Options Outstanding (in Shares)	(373)	(12)	(13)
Aggregate Intrinsic Value (in Dollars)	$ 2,744	$ 147	$ 143
Forfeited (in Shares)			(11)
Minimum [Member]
Note 8 - Stock-Based Compensation (Details) - Stock Option Activity [Line Items]
Exercise Price Per Share Range	$ 5.43	$ 0.36	$ 0.18	$ 0.18
Exercise Price Per Share Weighted Average	$ 5.43	$ 0.36	$ 0.18	$ 0.18
Exercise Price Per Share Range	$ 16.45	$ 10.23	$ 10.72
Exercise Price Per Share Weighted Average	$ 16.45	$ 10.23	$ 10.72
Exercise Price Per Share Range	$ 0.36	$ 0.18	$ 1.06
Exercise Price Per Share Weighted Average	$ 0.36	$ 0.18	$ 1.06
Forfeited			$ 11.15
Forfeited			$ 11.15
Maximum [Member]
Note 8 - Stock-Based Compensation (Details) - Stock Option Activity [Line Items]
Exercise Price Per Share Range	$ 20.27	$ 20.27	$ 20.27	$ 20.27
Exercise Price Per Share Weighted Average	$ 20.27	$ 20.27	$ 20.27	$ 20.27
Exercise Price Per Share Range	$ 17.22	$ 13.06	$ 12.43
Exercise Price Per Share Weighted Average	$ 17.22	$ 13.06	$ 12.43
Exercise Price Per Share Range	$ 12.43	$ 0.18	$ 7.55
Exercise Price Per Share Weighted Average	$ 12.43	$ 0.18	$ 7.55
Forfeited			$ 11.15
Forfeited			$ 11.15
Weighted Average [Member]
Note 8 - Stock-Based Compensation (Details) - Stock Option Activity [Line Items]
Exercise Price Per Share Range	$ 12.65	$ 11.09	$ 10.89	$ 10.63
Exercise Price Per Share Weighted Average	$ 12.65	$ 11.09	$ 10.89	$ 10.63
Vested and anticipated to vest in future at September 28, 2013	$ 12.64
Exercisable at September 28, 2013	$ 12.10
Exercise Price Per Share Range	$ 16.84	$ 11.44	$ 11.49
Exercise Price Per Share Weighted Average	$ 16.84	$ 11.44	$ 11.49
Exercise Price Per Share Range	$ 9.27	$ 0.18	$ 1.60
Exercise Price Per Share Weighted Average	$ 9.27	$ 0.18	$ 1.60
Forfeited			$ 11.15
Forfeited			$ 11.15

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