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INCOME TAXES - Summary of Income Tax Contingencies (Details) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 03, 2020 | Sep. 28, 2019
Income Tax Disclosure [Abstract] |  |
Balance at beginning of year | $ 158 | $ 110
Additions based on tax positions taken in current and prior years | 19 | 407
Settlements | 0 | (205)
Lapse in statute of limitations | 0 | (109)
Decreases based on tax positions taken in prior years | (75) | (45)
Balance at end of year | $ 102 | $ 158

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