VARIABLE INTEREST ENTITIES - Schedule of variable interest entities (Details) - USD ($) $ in Thousands	Jul. 01, 2023	Apr. 01, 2023	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Oct. 02, 2021
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 13,986		$ 23,439
Accounts receivable	3,748		3,185
Inventories	3,249		3,707
Prepaid and refundable income taxes	250		1,778
Prepaid expenses and other current assets	1,512		1,523
Fixed assets - net	34,633		34,682
Operating lease right-of-use assets - net	95,637		101,720
Other assets	2,154		2,524
Total assets	187,010		209,534
Accounts payable - trade	4,383		4,466
Accrued expenses and other current liabilities	12,612		16,312
Current portion of operating lease liabilities	8,184		7,530
Operating lease liabilities, less current portion	91,251		97,444
TOTAL LIABILITIES	124,043		149,416
Equity of variable interest entities	62,967	$ 60,568	60,118	$ 59,494	$ 54,119	$ 51,452
TOTAL LIABILITIES AND EQUITY	187,010		209,534
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Cash and cash equivalents	678		834
Accounts receivable	163		140
Inventories	42		38
Prepaid and refundable income taxes	204		278
Prepaid expenses and other current assets	28		17
Fixed assets - net	238		212
Operating lease right-of-use assets - net	1,867		2,076
Other assets	11		11
Total assets	3,267		4,006
Accounts payable - trade	106		135
Accrued expenses and other current liabilities	401		417
Current portion of operating lease liabilities	291		272
Operating lease liabilities, less current portion	1,700		1,921
TOTAL LIABILITIES	2,498		2,745
Equity of variable interest entities	769		1,261
TOTAL LIABILITIES AND EQUITY	3,267		4,006
Variable Interest Entity, Primary Beneficiary | Affiliated Entity
Variable Interest Entity [Line Items]
Due from Ark Restaurants Corp. and affiliates	$ 36		$ 400