Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Cash flows provided from (used for) operating activities:
Net income (loss)	$ 33,796	$ (75,572)	$ (43,029)
Adjustments to reconcile net income to net cash provided from operating activities:
Loss (gain) on disposals of property and equipment	(1,617)	1,572	8
Stock-based compensation	5,551	4,902	6,234
Impairment and other lease charges	7,609	21,877	4,470
Depreciation and amortization	74,161	78,068	80,798
Amortization of deferred financing costs	2,162	2,165	2,446
Amortization of bond premium and discount on debt	129	128	487
Deferred income taxes	3,761	(752)	(5,123)
Loss on extinguishment of debt	(875)	0	8,538
Trade and other receivables	(1,595)	(3,853)	3,218
Accounts payable	4,763	252	1,100
Accrued interest	(939)	210	8,777
Accrued payroll, related taxes and benefits	13,853	(11,729)	1,438
Increase (Decrease) in Other Operating Liabilities	(793)	706	903
Change in operating right-of-use assets and operating lease liabilities, net	2,166	3,978	8,147
Other	(2,984)	(1,148)	(7,541)
Net cash provided from operating activities	139,148	20,804	70,871
Cash flows used for investing activities:
New restaurant development	(9,733)	(8,881)	(9,000)
Restaurant remodeling	(16,251)	(9,139)	(16,712)
Other restaurant capital expenditures	(21,971)	(16,639)	(17,045)
Corporate and restaurant information systems	(6,608)	(3,560)	(9,006)
Total capital expenditures	(54,563)	(38,219)	(51,763)
Acquisition of restaurants, net of cash acquired	0	0	(30,819)
Proceeds from Sale of Other Assets, Investing Activities	0	864	229
Proceeds from insurance recoveries	2,351	54	1,523
Properties purchased for sale-leaseback	(5,935)	(3,996)	0
Proceeds from sale-leaseback transactions	5,193	4,052	22,251
Net cash used for investing activities	(52,954)	(37,245)	(58,579)
Cash flows provided from (used for) financing activities:
Proceeds from issuance of senior secured second lien notes	0	0	300,000
Principal payments on Term B and B-1 Loans	(34,250)	(4,250)	(321,375)
Senior Notes Repurchase	8,656	0	0
Borrowings Under Prior Revolving Credit Facility	11,000	109,000	47,063
Repayments Under Prior Revolving Credit Facility	(23,500)	(96,500)	(47,063)
Proceeds from lease financing obligations	0	0	4,594
Payment of Special Cash Dividend, Financing Activities	(1,278)	0	(24,882)
Payments on finance lease liabilities	(3,074)	(2,552)	(981)
Costs associated with financing long-term debt	0	(41)	(5,404)
Purchase of treasury shares	(296)	(3)	(57)
Net cash provided from (used for) financing activities	(60,054)	5,654	(48,105)
Net increase (decrease) in cash	26,140	(10,787)	(35,813)
Cash and cash equivalents, beginning of period	18,364	29,151	64,964
Cash and cash equivalents, end of period	44,504	18,364	29,151
Supplemental disclosures:
Interest paid on long-term debt	29,315	27,952	16,976
Interest paid on lease financing obligations	0	103	104
Interest paid on finance leases	754	723	133
Accruals for capital expenditures	3,229	1,912	2,858
Income taxes paid (refunded), net	434	0	(13)
Finance lease obligations acquired or incurred	0	9,085	6,383
Gain (loss) on sale-leaseback transactions	1,179	(425)	(22)
Operating lease assets and liabilities resulting from lease modifications and new leases	36,223	23,773	36,633
Operating cash flows related to operating leases	$ 103,252	$ 102,529	$ 100,660