Dispositions - Tabular (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
Revenues:
Total revenues		$ 56,524
Costs and expenses:
Cost of sales		15,785
Restaurant wages and related expenses (including stock-based compensation expense of $26)	$ 200	17,705
Restaurant rent expense		5,756
Other restaurant operating expenses		8,991
General and administrative (including stock-based compensation expense of $127)		3,902
Depreciation and amortization		3,838
Other income and expense items that are not major		1,723
Total operating expenses		57,700
Loss from operations		(1,176)
Interest expense		1,962
Loss from discontinued operations before income taxes		(3,138)
Benefit from income taxes		(1,744)
Loss from discontinued operations, net of tax	(55)	(1,394)
Non-cash Operating Activities [Abstract]
Gain on disposals of property and equipment, net	0	(245)
Stock-based compensation	549	1,163
Impairment and other lease charges (recoveries)	(702)	(122)
Depreciation and amortization	5,114	8,926
Investing activities:
Restaurant remodeling	(1,480)	(662)
Other restaurant capital expenditures	(1,904)	(1,972)
Corporate and restaurant information systems	(421)	(462)
Total capital expenditures	(3,805)	(3,096)
Proceeds from sale-leaseback transactions	0	3,083
Net cash provided by investing activities – discontinued operations		1,052
Discontinued Operations
Costs and expenses:
Stock-based compensation	(100)	200
Non-cash Operating Activities [Abstract]
Gain on disposals of property and equipment, net		(245)
Stock-based compensation		153
Impairment and other lease charges (recoveries)		(70)
Depreciation and amortization		3,838
Investing activities:
New restaurant development		0
Restaurant remodeling		(500)
Other restaurant capital expenditures		(1,458)
Corporate and restaurant information systems		(73)
Total capital expenditures		(2,031)
Proceeds from sale-leaseback transactions		3,083
Supplemental cash flow disclosures:
Interest paid on long-term debt		1,660
Supplemental cash flow disclosures of non-cash investing and financing activities:
Accruals for capital expenditures		768
Operating lease ROU assets		4,493
Operating lease ROU assets		838
Operating lease liabilities		1,080
Discontinued Operations | Restaurant Wages And Related Expenses
Costs and expenses:
Stock-based compensation		26
Discontinued Operations | General and Administrative Expense
Costs and expenses:
Stock-based compensation	$ (100)	$ 127