Capital Assets (Goodwill) (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 03, 2015	Sep. 27, 2014
Goodwill [Line Items]
Beginning Balance		$ 26,123	$ 16,624
Acquisitions	[1]	533	9,563
Adjustment related to finalization of purchase accounting	[1]	1,619
Currency translation gain (loss)		(598)	(64)
Ending Balance		27,677	26,123
Test [Member]
Goodwill [Line Items]
Beginning Balance		24,584	15,028
Acquisitions	[1]	533	9,563
Adjustment related to finalization of purchase accounting	[1]	1,619
Currency translation gain (loss)		(493)	(7)
Ending Balance		26,243	24,584
Sensors [Member]
Goodwill [Line Items]
Beginning Balance		1,539	1,596
Currency translation gain (loss)		(105)	(57)
Ending Balance		$ 1,434	$ 1,539

[1] Refer to Note 11 for information related to our acquisitions.