Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2023	Mar. 29, 2022
Operating activities
Net loss	$ (3,115)	$ (6,429)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	6,250	5,721
Deferred income taxes	(73)	(84)
Restaurant impairments, closure costs and asset disposals	398	496
Amortization of debt issuance costs	90	112
Stock-based compensation	1,302	1,120
Changes in operating assets and liabilities:
Accounts receivable	1,606	(513)
Inventories	77	(315)
Prepaid expenses and other assets	(749)	1,378
Accounts payable	(996)	(716)
Income taxes	(10)	1
Operating lease assets and liabilities	(640)	(826)
Accrued expenses and other liabilities	3,082	(6,005)
Net cash provided by (used in) operating activities	7,222	(6,060)
Investing activities
Purchases of property and equipment	(10,436)	(8,412)
Proceeds from restaurant divestitures	0	1,577
Net cash used in investing activities	(10,436)	(6,835)
Financing activities
Net borrowings from swing line loan	575	3,195
Proceeds from borrowings on long-term debt	4,500	10,600
Payments on long-term debt	0	(750)
Payments on finance leases	(679)	(505)
Stock plan transactions and tax withholding on share-based compensation awards	(641)	(299)
Net cash provided by financing activities	3,755	12,241
Net increase (decrease) in cash and cash equivalents	541	(654)
Cash and cash equivalents
Beginning of period	1,523	2,255
End of period	$ 2,064	$ 1,601