COMPREHENSIVE INCOME (Narrative) (Details) (USD $)	Mar. 30, 2013	Mar. 31, 2012
COMPREHENSIVE INCOME [Abstract]
Unrealized loss on available-for-sale investments	$ 874,000	$ 2,076,000
Accumulated other comprehensive loss available for sale securities tax	$ 310,000	$ 731,000

The net amount of gross unrealized gains (losses) for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

Name:	us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant