Note 13 - Taxes on Income (Details) - Reconciliation of Unrecognized Tax Benefits - USD ($) $ in Thousands	12 Months Ended
Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
Reconciliation of Unrecognized Tax Benefits [Abstract]
Balance at beginning of year	$ 27,301	$ 27,361	$ 25,186
Increases related to tax positions taken during the current year	641	875	911
Increases related to tax positions taken during the prior years	1,230	1,157	3,938
Decreases related to tax positions taken during the prior years	(194)	(697)	(9)
Decreases related to settlements with taxing authorities	0	0	(1,928)
Decreases related to lapse of applicable statute of limitations	(367)	(919)	(397)
Changes due to foreign currency translation	(340)	(476)	(340)
Balance at end of year	$ 28,271	$ 27,301	$ 27,361

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- Definition

Unrecognized Tax Benefits Changes Due To Foreign Currency Translation Adjustments

+ References

No definition available.

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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