Note 13 (Details) - Changes to the Components of Other Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (9,865)	$ (5,561)	$ (5,988)	$ (5,930)
Other comprehensive income (loss) before reclassifications	(381)	742	(4,474)	850
Amounts reclassified from accumulated other comprehensive income		42	216	303
Ending Balance	(10,246)	(4,777)	(10,246)	(4,777)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(6,587)	(3,807)	(4,632)	(3,703)
Other comprehensive income (loss) before reclassifications	(914)	(172)	(2,869)	(276)
Ending Balance	(7,501)	(3,979)	(7,501)	(3,979)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(3,278)	(1,754)	(1,356)	(2,227)
Other comprehensive income (loss) before reclassifications	533	914	(1,605)	1,126
Amounts reclassified from accumulated other comprehensive income		42	216	303
Ending Balance	$ (2,745)	$ (798)	$ (2,745)	$ (798)