Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2021	Dec. 30, 2020	Dec. 25, 2019
Cash flows from operating activities:
Net income	$ 29,121	$ 24,474	$ 24,900
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization	15,176	16,878	17,855
Bad debt expense	0	190	0
Stock-based compensation expense	3,220	3,093	2,474
Income tax receivable agreement expense	58	139	57
Loss on disposition of restaurants	1,534	0	5,058
Loss on disposal of assets	289	189	266
Impairment of property and equipment	711	3,498	3,559
Amortization of deferred financing costs	251	252	251
Deferred income taxes, net	957	4,008	9,578
Changes in operating assets and liabilities:
Accounts and other receivables	(3,444)	(1,155)	1,094
Inventories	(218)	(92)	338
Prepaid expenses and other current assets	133	1,853	(2,727)
Income taxes payable	3,410	(2,145)	(448)
Other assets	(1,052)	(13)	(412)
Accounts payable	2,533	666	(3,192)
Accrued salaries and vacation	1,373	1,548	1,044
Accrued insurance	777	976	2,364
Payment related to tax receivable agreement	(1,658)	(5,237)	(5,764)
Other accrued expenses and liabilities	(1,072)	(8,575)	(20,160)
Net cash flows provided by operating activities	52,099	40,547	36,135
Cash flows from investing activities:
Proceeds from disposition of restaurants	4,556	0	4,770
Purchase of property and equipment	(17,041)	(6,690)	(15,439)
Net cash flows used in investing activities	(12,485)	(6,690)	(10,669)
Cash flows from financing activities:
Proceeds from borrowings on revolver and swingline loans	0	59,500	42,000
Payments on revolver and swingline loan	(22,800)	(93,700)	(19,000)
Minimum tax withholdings related to net share settlements	(705)	(335)	(365)
Proceeds from issuance of common stock upon exercise of stock options, net of expenses	866	5,866	1,450
Payment of obligations under finance leases	(148)	(39)	(68)
Repurchases of common stock	0	0	(48,382)
Net cash flows used in financing activities	(22,787)	(28,708)	(24,365)
Increase in cash and cash equivalents	16,827	5,149	1,101
Cash and cash equivalents, beginning of period	13,219	8,070	6,969
Cash and cash equivalents, end of period	30,046	13,219	8,070
Supplemental cash flow information
Cash paid during the period for interest	1,066	2,956	3,649
Cash paid during the period for income taxes	5,968	4,225	558
Unpaid purchases of property and equipment	$ 2,454	$ 1,925	$ 746