INCOME TAXES - Summary of Income Tax Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	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