Note 12 - Changes to the Components of Other Comprehensive Loss (Unaudited) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2016	Jun. 27, 2015	Jun. 27, 2016	Jun. 27, 2015
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Beginning balance	$ (10,701)	$ (7,501)	$ (10,021)	$ (4,632)
Other comprehensive income (loss) before reclassifications	(1,387)	(420)	(2,067)	(3,289)
Amounts reclassified from accumulated other comprehensive income
Ending balance	(12,088)	(7,921)	(12,088)	(7,921)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Beginning balance	(1,978)	(2,745)	(876)	(1,356)
Other comprehensive income (loss) before reclassifications	534	(728)	(812)	(2,333)
Amounts reclassified from accumulated other comprehensive income	106	1,099	350	1,315
Ending balance	(1,338)	(2,374)	(1,338)	(2,374)
Beginning balance	(12,679)	(10,246)	(10,897)	(5,988)
Other comprehensive income (loss) before reclassifications	(853)	(1,148)	(2,879)	(5,622)
Amounts reclassified from accumulated other comprehensive income	106	1,099	350	1,315
Ending balance	$ (13,426)	$ (10,295)	$ (13,426)	$ (10,295)