Note 7 - Restructuring Charges and Exit Costs (Details) - Summary of Activities Affecting Liabilities (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 29, 2015	Mar. 30, 2014
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 2,369us-gaap_RestructuringReserve	$ 3,286us-gaap_RestructuringReserve
Additions/Adjustments	12,186	3,014
Non-cash Charges	(7,985)	(57)
Payments	(5,588)us-gaap_PaymentsForRestructuring	(3,874)us-gaap_PaymentsForRestructuring
Ending Balance	982us-gaap_RestructuringReserve	2,369us-gaap_RestructuringReserve
Lease Contract Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	1,615	2,860
Additions/Adjustments	522	570
Non-cash Charges	(220)	(57)
Payments	(1,587)	(1,758)
Ending Balance	330	1,615
Impairment of Fixed Assets and Write Down of Inventory [Member]
Restructuring Cost and Reserve [Line Items]
Additions/Adjustments	7,765
Non-cash Charges	(7,765)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	754	426
Additions/Adjustments	3,899	2,444
Payments	(4,001)	(2,116)
Ending Balance	$ 652	$ 754

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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- Definition

Amount of (expense) reversal of expense related to a previously accrued restructuring cost liability. Excludes adjustments for costs incurred, costs settled, and foreign currency translation adjustments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

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Amount of consideration other than cash used to fully or partially settle an accrued restructuring cost.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

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-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b)(2))

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