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Note 2 - Recent Accounting Pronouncements (Details Textual) - USD ($) $ in Millions | Jan. 01, 2019 | Dec. 30, 2018
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Minimum [Member] |  |
Lessee, Operating Lease, Term of Contract |  | 1 year
Minimum [Member] | Accounting Standards Update 2016-02 [Member] | Subsequent Event [Member] |  |
Finance and Operating Leases, Right-of-Use Asset (Liability) | $ 80 |
Maximum [Member] |  |
Lessee, Operating Lease, Term of Contract |  | 12 years
Maximum [Member] | Accounting Standards Update 2016-02 [Member] | Subsequent Event [Member] |  |
Finance and Operating Leases, Right-of-Use Asset (Liability) | $ 100 |

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- Definition Value of finance and operating leases, right-of-use assets (Liabilities). + References No definition available. + Details
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Period Type: | instant

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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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Period Type: | instant

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- Details
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- Details
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- Details
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- Details
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