CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2023	Jul. 03, 2022	Jul. 02, 2023	Jul. 03, 2022
Costs and expenses:
Impairment and other lease charges (recoveries)			$ 2,941	$ 1,408
Income (loss) from continuing operations before taxes	$ 4,211	$ (5,354)	2,034	(6,877)
Provision for income taxes	382	1,134	349	912
Income (loss) from continuing operations	3,829	(6,488)	1,685	(7,789)
Income from discontinued operations, net of tax	30	267	265	212
Net income (loss)	$ 3,859	$ (6,221)	$ 1,950	$ (7,577)
Earnings (loss) per common share:
Continuing operations - basic (usd per share)	$ 0.15	$ (0.26)	$ 0.06	$ (0.31)
Discontinued operations - basic (usd per share)	0	0.01	0.01	0.01
Basic (usd per share)	0.15	(0.25)	0.07	(0.30)
Continuing operations - diluted (usd per share)	0.15	(0.26)	0.06	(0.31)
Discontinued operations - diluted (usd per share)	0	0.01	0.01	0.01
Diluted (usd per share)	$ 0.15	$ (0.25)	$ 0.07	$ (0.30)
Weighted average common shares outstanding:
Basic (in shares)	25,566,740	24,946,674	25,493,415	24,889,650
Diluted (in shares)	25,566,740	24,946,674	25,493,415	24,889,650
Continuing Operations
Revenues:
Revenues	$ 106,843	$ 98,487	$ 210,214	$ 194,096
Costs and expenses:
Cost of sales	32,568	32,580	65,180	63,327
Restaurant wages and related expenses (including stock-based compensation expense of $0, $6, $4 and $13, respectively)	25,878	24,583	52,268	48,157
Restaurant rent expense	6,110	5,976	12,191	12,003
Other restaurant operating expenses	18,410	16,755	36,034	33,405
Advertising expense	3,116	3,245	6,312	6,109
General and administrative (including stock-based compensation expense of $638, $1,388, $1,233 and $2,011, respectively)	10,729	12,791	23,912	25,133
Depreciation and amortization	4,822	5,232	9,214	10,346
Impairment and other lease charges (recoveries)	685	2,110	2,941	1,408
Closed restaurant rent expense, net of sublease income	238	401	(46)	781
Other expense (income), net	157	83	172	134
Total operating expenses	102,713	103,756	208,178	200,803
Income (loss) from operations	4,130	(5,269)	2,036	(6,707)
Interest expense (income), net	(81)	85	2	170
Restaurant sales | Continuing Operations
Revenues:
Revenues	106,637	98,023	209,701	193,223
Franchise royalty revenues and fees | Continuing Operations
Revenues:
Revenues	$ 206	$ 464	$ 513	$ 873