Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Dec. 29, 2013	Dec. 30, 2012
Net income (loss)	$ (1,634)	$ 1,523	$ 5,654	$ 1,210
Changes in market value of investments, net of tax:
Changes in unrealized gain on investments	(77)	(305)	(495)	(42)
Reclassification adjustment for net realized gains (losses)	67	4	41	(149)
Net change in market value of investments	(10)	(301)	(454)	(191)
Comprehensive income (loss)	$ (1,644)	$ 1,222	$ 5,200	$ 1,019