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SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Matching contributions to the Plan) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Mar. 31, 2018 | Apr. 01, 2017 | Mar. 31, 2018 | Apr. 01, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |  |  |  |
Cash | $ 352 | $ 504 | $ 853 | $ 917

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- Definition The amount of cash or cash equivalents contributed by the entity to fund its pension plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 + Details
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