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Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Jan. 01, 2012	Apr. 03, 2011
Commitments and Contingencies [Abstract]
Maximum amount of potential future payments under various financial guarantees	$ 2.5
Standard warranty period (in years)	1Y
Extended warranty period maximum (in years)	2Y
Total warranty accrual	$ 0.2	$ 0.4
Number of patents in oscillator and clock signal technology infringed by competitor	4

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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