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Note 17 - Fair Value of Financial Instruments and Non-Financial Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified | 0 Months Ended | 9 Months Ended |  |  | 22 Months Ended |  |  |  |  |
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May 18, 2012 | Mar. 30, 2014 | Dec. 02, 2013 | Feb. 28, 2015 Scenario, Forecast [Member] Cash Flow Hedging [Member] Interest Rate Swap [Member] | Feb. 28, 2015 Scenario, Forecast [Member] | May 31, 2013 Cash Flow Hedging [Member] Interest Rate Swap [Member] | May 18, 2012 Cash Flow Hedging [Member] Interest Rate Swap [Member] | Mar. 30, 2014 Accrued Expenses [Member] Dillion [Member] | Mar. 30, 2014 Other Noncurrent Liabilities [Member] Dillion [Member] | Mar. 30, 2014 Other Noncurrent Liabilities [Member] | Dec. 31, 2014 Dillion [Member] | Dec. 29, 2013 Dillion [Member]
Note 17 - Fair Value of Financial Instruments and Non-Financial Assets and Liabilities (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge | 5 years |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | $ 50,000 |  | $ 85,000 | $ 50,000 |  |  |  |  |
Quarterly Decrease in Notional Amount of Interest Rate Cash Flow Hedge Derivatives |  |  |  |  | 5,000 |  |  |  |  |  |  |
Derivative, Swaption Interest Rate | 1.06% |  |  |  |  |  |  |  |  |  |  |
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net |  | 433 |  |  |  |  |  |  |  |  |  |
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net |  | 386 |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  | $ 2,500 |  |  |  |  | $ 562 | $ 2,025 | $ 2,025 | $ 2,587 | $ 2,500

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Details
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- Definition Quarterly decrease in notional amount of interest rate cash flow hedge derivatives. + References No definition available. + Details
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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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- Definition Fixed interest rate that will be received or paid upon exercise of the interest rate swaption contract. + References No definition available. + Details
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- Definition The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Definition The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994 + Details
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- Definition Maximum period the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, 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 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994 + Details
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