Accumulated Other Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance, accumulated other comprehensive loss	$ (886)	$ (919)	$ (762)
Current period marketable securities activity	107	(31)	(157)
Actuarial loss on pension plan	(1,625)
Tax effect	294us-gaap_OtherComprehensiveIncomeLossTax	64us-gaap_OtherComprehensiveIncomeLossTax
Ending balance, accumulated other comprehensive loss	(2,110)	(886)	(919)
Foreign Currency [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance, accumulated other comprehensive loss				(770)
Ending balance, accumulated other comprehensive loss	(770)	(770)	(770)	(770)
Unrealized Gains (Losses) on Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance, accumulated other comprehensive loss	(116)	(149)	8
Current period marketable securities activity	107	(31)	(157)
Tax effect	(38)	64
Ending balance, accumulated other comprehensive loss	(47)	(116)	(149)
Actuarial Gains (Losses) on Pension Plan [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Actuarial loss on pension plan	(1,625)
Tax effect	332
Ending balance, accumulated other comprehensive loss	$ (1,293)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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