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INCOME TAXES (Net deferred tax balance) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Oct. 01, 2016
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Income Tax Disclosure [Abstract] |  |
Inventory reserves | $ 589 | $ 546
Stock options | 422 | 647
Other accruals and reserves | 8,230 | 4,937
Domestic tax credit carryforwards | 17,635 | 8,011
Net operating loss carryforwards | 35,937 | 31,817
Deferred Tax Assets, Gross | 62,813 | 45,958
Valuation allowance | (29,614) | (27,381)
Total long-term deferred tax asset (1) | 33,199 | 18,577
Repatriation of foreign earnings, including foreign withholding taxes | 20,945 | 20,119
Depreciable assets | 11,262 | 9,333
Total long-term deferred tax liability | 32,207 | 29,452
Deferred Tax Assets, Net | 992 |
Total net deferred tax liability |  | (10,875)
Deferred tax asset | 27,771 | 16,822
Deferred tax liability | $ 26,779 | $ 27,697

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