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SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Accumulated other comprehensive income) (Details) - USD ($)
$ in Thousands
Jul. 01, 2017
Oct. 01, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
(Loss) / Gain from foreign currency translation adjustments $ (313) $ 462
Unrecognized actuarial loss Switzerland pension plan, net of tax (2,764) (2,726)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax 877 (462)
Accumulated other comprehensive loss $ (2,200) $ (2,726)