Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2020	Dec. 31, 2019	Jan. 01, 2019
Operating activities
Net (loss) income	$ (23,259)	$ 1,647	$ (8,441)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	21,709	22,086	22,872
Deferred income taxes, net	40	68	(283)
Restaurant impairments, closure costs and asset disposals	4,782	7,808	6,992
Loss on extinguishment of debt	0	746	626
Amortization of debt issuance costs	371	474	607
Stock-based compensation	2,497	2,443	2,979
Gain on insurance proceeds received for property damage	(200)	(489)	(370)
Changes in operating assets and liabilities:
Accounts receivable	(392)	(630)	91
Inventories	61	(625)	(541)
Prepaid expenses and other assets	(14)	(690)	185
Accounts payable	(1,287)	406	(1,580)
Deferred rent	0	0	(1,396)
Operating lease assets and liabilities	2,847	(2,202)	0
Income taxes	59	82	(109)
Accrued expenses and other liabilities	1,910	(1,064)	(16,286)
Net cash provided by operating activities	9,124	30,060	5,346
Investing activities
Purchases of property and equipment	(11,782)	(17,404)	(14,338)
Franchise restaurant acquisition, net of cash acquired	0	(1,387)	0
Proceeds from disposal of property and equipment	0	352	0
Insurance proceeds received for property damage	837	0	500
Net cash used in investing activities	(10,945)	(18,439)	(13,838)
Financing activities
Net repayments from swing line loan	0	0	(101)
Proceeds from borrowings on long-term debt	55,500	1,917	74,889
Payments on long-term debt	(54,313)	(5,875)	(87,030)
Debt issuance costs	(731)	(917)	(1,713)
Payment of finance leases	(1,080)	(690)	0
Issuance of common stock, net of transaction expenses	0	0	22,992
Stock plan transactions and tax withholding on share-based compensation awards	(174)	(252)	749
Net cash (used in) provided by financing activities	(798)	(5,817)	9,786
Net (decrease) increase in cash and cash equivalents	(2,619)	5,804	1,294
Cash and cash equivalents
Beginning of year	10,459	4,655	3,361
End of year	$ 7,840	$ 10,459	$ 4,655