Note 7 Goodwill and Intangible Assets (Acquired Intangibles) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	0 Months Ended
Mar. 31, 2014	Feb. 18, 2010 Zilog Inc [Member]	Jun. 27, 2013 MCU Business [Member]	Feb. 18, 2010 Developed Intellectual Property [Member] Zilog Inc [Member]	Jun. 27, 2013 Developed Intellectual Property [Member] MCU Business [Member]	Feb. 18, 2010 Customer Relationships [Member] Zilog Inc [Member]	Jun. 27, 2013 Customer Relationships [Member] MCU Business [Member]	Feb. 18, 2010 Contract Backlog [Member] Zilog Inc [Member]	Jun. 27, 2013 Contract Backlog [Member] MCU Business [Member]	Feb. 18, 2010 Trade Names [Member] Zilog Inc [Member]	Jun. 27, 2013 Trade Names [Member] MCU Business [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets Acquired		$ 14,000	$ 24,000	$ 4,800	$ 11,504	$ 6,100	$ 6,920	$ 2,000	$ 5,155	$ 1,100	$ 421
Finite-Lived Intangible Assets, Amortization Method	straight-line method or accelerated method			Straight-line	Straight-line	Accelerated	Accelerated	Straight-line	Straight-line	Straight-line	Straight-line
Acquired Finite-Lived Intangible Asset, Estimated Useful Life				72 months	60 months	37 months	36 months	12 months	9 months	72 months	60 months

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

+ Details

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- Definition

The amortization method of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company. The straight-line method is the preferred amortization method, unless another method better reflects the pattern in which the asset is consumed.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 35

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=26713198&loc=d3e15372-109273

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