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Note 15 - Taxes on Income - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 30, 2018 | Dec. 31, 2017 | Jan. 01, 2017
Balance at beginning of year | $ 29,221 | $ 27,888 | $ 28,271
Increases related to tax positions taken during the current year | 671 | 627 | 690
Increases related to tax positions taken during the prior years | 180 | 709 | 148
Decreases related to tax positions taken during the prior years | 0 | 0 | (695)
Decreases related to settlements with taxing authorities | 0 | 0 | 0
Decreases related to lapse of applicable statute of limitations | (1,861) | (462) | (403)
Changes due to foreign currency translation | (68) | 459 | (123)
Balance at end of year | $ 28,143 | $ 29,221 | $ 27,888

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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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