Note 11 - Restructuring Charges and Exit Costs (Details) - Summary of Activities Affecting Liabilities (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Dec. 28, 2014	Mar. 30, 2014
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 2,369us-gaap_RestructuringReserve	$ 3,286us-gaap_RestructuringReserve
Additions/Adjustments	10,436	3,014
Non-cash Charges	(6,732)	(57)
Payments	(4,668)us-gaap_PaymentsForRestructuring	(3,874)us-gaap_PaymentsForRestructuring
Ending Balance	1,405us-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	294	570
Non-cash Charges	(164)	(57)
Payments	(1,485)	(1,758)
Ending Balance	260	1,615
Impairment of Fixed Assets and Write Down of Inventory [Member]
Restructuring Cost and Reserve [Line Items]
Additions/Adjustments	6,568
Non-cash Charges	(6,568)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	754	426
Additions/Adjustments	3,574	2,444
Payments	(3,183)	(2,116)
Ending Balance	$ 1,145	$ 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)

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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

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Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, 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)

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

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

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

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

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

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