INCOME TAXES - Summary of Income Tax Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of year	$ 102	$ 158
Additions based on tax positions taken in current and prior years	76	19
Settlements	0	0
Lapse in statute of limitations	0	0
Decreases based on tax positions taken in prior years	0	(75)
Balance at end of year	$ 178	$ 102