Discontinued Operations (Details 2) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jun. 29, 2014	Jun. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income (loss) from discontinued operations	$ 4,732	$ (3,765)
High-Speed Converter Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	1,006	518
Cost of revenues	(605)	(467)
Long-lived assets impairment	(8,471)	0
Operating expenses	(4,083)	(3,915)
Gain on divestiture	16,840	0
Income tax benefit	45	99
Net income (loss) from discontinued operations	$ 4,732	$ (3,765)

Disposal Group, Including Discontinued Operation, Long-lived Assets Impairment

No definition available.

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- Definition

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

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- Definition

Amount of costs of goods sold attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

+ References

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Amount of operating expenses attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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- Definition

Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

+ References

No definition available.

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Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

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