Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 23, 2020	Sep. 25, 2019
Cash flows from operating activities:
Net income	$ 19,019	$ 21,402
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization	12,629	13,558
Bad debt expense	190
Stock-based compensation expense	2,170	1,797
Income tax receivable agreement expense (income)	26	(120)
Loss on disposition of restaurants		5,062
Loss on disposal of assets	156	213
Impairment of property and equipment	3,478	283
Amortization of deferred financing costs	189	189
Amortization of favorable and unfavorable leases, net		(362)
Deferred income taxes, net	(110)	8,583
Changes in operating assets and liabilities:
Accounts and other receivables, net	(2,527)	(1,257)
Inventories	72	261
Prepaid expenses and other current assets	3,163	868
Other assets	159	(118)
Accounts payable	476	(1,657)
Accrued salaries and vacation	1,311	2,259
Accrued insurance	816	1,863
Income taxes payable	2,264	102
Other accrued expenses and liabilities	(9,962)	(21,031)
Net cash flows provided by operating activities	33,519	31,895
Cash flows from investing activities:
Proceeds from disposition of restaurants		4,770
Purchase of property and equipment	(4,349)	(10,848)
Net cash flows used in investing activities	(4,349)	(6,078)
Cash flows from financing activities:
Minimum tax withholdings related to net share settlements	(331)	(341)
Payments on revolver and swingline loan	(65,700)	(15,000)
Borrowings on revolver and swingline loan	52,500	42,000
Proceeds from issuance of common stock upon exercise of stock options, net of expenses	5,846	80
Payment of obligations under finance leases	(26)	(61)
Stock buybacks		(47,395)
Net cash flows used in financing activities	(7,711)	(20,717)
Increase in cash and cash equivalents	21,459	5,100
Cash and cash equivalents, beginning of period	8,070	6,969
Cash and cash equivalents, end of period	29,529	12,069
Supplemental cash flow information
Cash paid during the period for interest	2,381	2,400
Cash paid during the period for income taxes	1,632	268
Unpaid purchases of property and equipment	$ 881	2,577
Unpaid stock buybacks		$ 1,004