RECENT RESTAURANT EXPANSION AND OTHER DEVELOPMENTS - Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Jul. 21, 2022	Jun. 24, 2022	Apr. 08, 2022	Jan. 26, 2021
Business Acquisition [Line Items]
Shares - Basic (in shares)	3,556	3,516
Shares - Diluted (in shares)	3,603	3,604
Cost method investment, ownership percent						5.00%
Total future lease payments	$ 150,042
Gallaghers Steakhouse | Minimum
Business Acquisition [Line Items]
Total future lease payments					$ 1,500
America | Minimum
Business Acquisition [Line Items]
Total future lease payments				$ 4,000
Village Eateries | Minimum
Business Acquisition [Line Items]
Total future lease payments			$ 3,500
Blue Moon Fish Company
Business Acquisition [Line Items]
Total revenues		$ 132,547
Net income (loss)		$ 12,926
Net income (loss) per share - basic (in dollars per share)		$ 3.68
Net income (loss) per share - diluted (in dollars per share)		$ 3.59
Shares - Basic (in shares)		3,516
Shares - Diluted (in shares)		3,604