CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 9,070	$ 7,336	$ 7,113	$ 10,940
Other comprehensive income:
Foreign currency translation adjustment	204	(113)	314	598
Unrecognized actuarial gain (loss), Switzerland pension plan, net of tax	12	(20)	12	(37)
Total other comprehensive income (loss)	216	(133)	326	561
Comprehensive income	$ 9,286	$ 7,203	$ 7,439	$ 11,501