Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 24, 2016

Equity [Abstract]

Accumulated other comprehensive income details

The table below summarizes the changes in accumulated other comprehensive income (loss) by component for the periods indicated (in thousands).

	Three Months Ended
	September 24, 2016									September 26, 2015
	Unrealized Gains and Losses on Available-for-Sale Marketable Securities			Foreign Currency Translation Adjustments			Total			Unrealized Gains and Losses on Available-for-Sale Marketable Securities			Foreign Currency Translation Adjustments			Total
Balance at beginning of period	$	12		$	(142	)	$	(130	)	$	(22	)	$	157		$	135
Other comprehensive income (loss)	(9		)	(87		)	(96		)	30			(196		)	(166		)
Balance at end of period	$	3		$	(229	)	$	(226	)	$	8		$	(39	)	$	(31	)

	Nine Months Ended
	September 24, 2016									September 26, 2015
	Unrealized Gains and Losses on Available-for-Sale Marketable Securities			Foreign Currency Translation Adjustments			Total			Unrealized Gains and Losses on Available-for-Sale Marketable Securities			Foreign Currency Translation Adjustments			Total
Balance at beginning of period	$	(94	)	$	(101	)	$	(195	)	$	(58	)	$	138		$	80
Other comprehensive income (loss)	97			(128		)	(31		)	66			(177		)	(111		)
Balance at end of period	$	3		$	(229	)	$	(226	)	$	8		$	(39	)	$	(31	)