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Note 13 - Taxes on Income (Details) - Income (Loss) from Continuing Operations before Taxes On Income (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 28, 2014 | Dec. 29, 2013 | Dec. 30, 2012
Income (Loss) from Continuing Operations before Taxes On Income [Abstract] |  |  |
U.S. operations | $ 10,345 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | $ 21,292 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | $ 27,332 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Foreign operations | 25,397 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | 47,712 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | 10,771 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
| $ 35,742 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | $ 69,004 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | $ 38,103 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

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- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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