CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Net income (loss)	$ 6,768	$ (1,881)	$ 11,035	$ 12,569
Other comprehensive income:
Foreign currency translation adjustment, net of taxes of ($134), $68, $19 and $56	(239)	121	37	401
Reclassification of unrealized gain on auction rate securities				(1,445)
Accumulated other comprehensive income related to benefit plan obligation, net of taxes of $1, $1, $4 and $4	3	2	8	6
Net unrealized (loss) gain on available-for-sale securities, net of taxes of ($8), $24, ($5), and $9	(15)	42	(9)	15
Comprehensive income (loss)	$ 6,517	$ (1,716)	$ 11,071	$ 11,546