RECENT RESTAURANT EXPANSION AND OTHER DEVELOPMENTS - Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Business Acquisition [Line Items]
Shares - Basic (in shares)	3,555	3,522	3,553	3,512
Shares - Diluted (in shares)	3,597	3,648	3,599	3,602
Blue Moon Fish Company
Business Acquisition [Line Items]
Total revenues				$ 89,708
Net income				$ 6,102
Net income per share - basic (in dollars per share)				$ 1.74
Net income per share - diluted (in dollars per share)				$ 1.69
Shares - Basic (in shares)				3,512
Shares - Diluted (in shares)				3,602