Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 6,235	$ (1,443)	$ 13,688	$ (37,038)
Other comprehensive (loss) income:
Unrealized gain on marketable securities, net of tax	0	81	5	32
Foreign currency translation adjustment, including intra-entity foreign currency transactions that are of a long-term-investment nature	(44)	(18)	59	(103)
Reclassification adjustments, net of tax:
Recognized loss on marketable securities	0	1	0	4
Amortization of pension actuarial loss	1	0	2	0
Other comprehensive (loss) income	(43)	64	66	(67)
Total comprehensive income (loss)	$ 6,192	$ (1,379)	$ 13,754	$ (37,105)