Basis of Presentation (Details 1) (USD $) In Thousands	3 Months Ended
Jul. 01, 2011	Jul. 02, 2010
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in Accumulated OCI on derivatives (effective portion)	$ 54	$ (89)
Amount of gain or (loss) reclassified from accumulated OCI into income (effective portion)	160	(9)
Foreign currency forward contracts [Member] \| Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in Accumulated OCI on derivatives (effective portion)	54	(89)
Foreign currency forward contracts [Member] \| Cash Flow Hedging [Member] \| Cost of product revenues [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) reclassified from accumulated OCI into income (effective portion)	$ 160	$ (9)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The income statement location of the effective portion of net gain or loss reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 205G

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44C
-Subparagraph b
-Clause 3

+ Details

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

+ Details

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