Balance Sheet Items (Tables)

9 Months Ended

Sep. 26, 2015

Balance Sheet Items [Abstract]

Schedule Of Inventories

	September 26,		December 27,
(in thousands)	2015		2014
Work-in-progress	$	15,655	$	17,438
Finished goods		17,191		20,511
	$	32,846	$	37,949

Schedule Of Product Warranties

	Nine Months Ended
	September 26,		September 27,
(in thousands)	2015		2014
Balance, beginning of the period	$	1,756	$	2,163
Accrual for new warranties issued		512		371
Reduction for payments and product replacements		(372)		(533)
Adjustments related to revisions and changes in estimate of warranty accrual		(700)		(113)
Balance, end of the period	$	1,196	$	1,888

Schedule Of Restructuring Costs

	Three Months Ended		Nine Months Ended
	September 26,		September 26,
(in thousands)	2015		2015
Employee severance and related compensation benefits (recoveries) expense:
Cost of revenues	$	(6)	$	1,158
Research and development, net		(80)		7,864
Selling, general and administrative		16		3,993
		(70)		13,015
Site closures and asset impairments		1,165		1,165
Total restructuring costs	$	1,095	$	14,180

Schedule Of Restructuring Activity

(in thousands)	Employee severance & related  benefits compensation		Site closures & assets impairment		Total
Accrued restructuring balance as of December 27, 2014	$	—	$	—	$	—
Additional accruals		13,488		1,165		14,653
Cash payments		(6,127)		(154)		(6,281)
Adjustments and non-cash charges		(921)		(792)		(1,713)
Accrued restructuring balance as of September 26, 2015	$	6,440	$	219	$	6,659