Consolidated Statements Of Cash Flows $ in Thousands	12 Months Ended
	Dec. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 01, 2017 USD ($)
Cash flows provided from (used for) operating activities:
Net income (loss)	$ 10,104	$ 7,159	$ 45,472
Adjustments to reconcile net income to net cash provided from operating activities:
Loss on disposals of property and equipment	312	521	(549)
Stock-based compensation	5,812	3,518	2,053
Gain on bargain purchase (Note 2)	(230)	0	0
Impairment and other lease charges	3,685	2,827	2,355
Depreciation and amortization	58,468	54,159	47,295
Amortization of deferred financing costs	1,202	1,035	791
Amortization of bond premium	(913)	(459)	0
Amortization of deferred gains from sale-leaseback transactions	(1,584)	(1,626)	(1,788)
Deferred income taxes	(483)	574	(28,085)
Refundable income taxes	55	99	(153)
Accounts receivable	(2,275)	(1,310)	(1,462)
Accounts payable	(926)	3,084	1,686
Accrued interest	146	996	4
Accrued payroll, related taxes and benefits	2,084	336	(1,553)
Other	5,312	1,870	(3,778)
Net cash provided from operating activities	80,769	72,783	62,288
Cash flows used for investing activities:
New restaurant development	(23,171)	(14,759)	(8,228)
Restaurant remodeling	(31,951)	(33,504)	(65,767)
Other restaurant capital expenditures	(15,726)	(18,926)	(15,168)
Corporate and restaurant information systems	(4,887)	(6,327)	(4,936)
Total capital expenditures	(75,735)	(73,516)	(94,099)
Acquisition of restaurants, net of cash acquired	(38,102)	(37,923)	(48,088)
Proceeds from insurance recoveries	642	481	1,413
Properties purchased for sale-leaseback	(2,123)	(1,404)	(9,046)
Proceeds from sale-leaseback transactions	8,424	4,257	53,599
Net cash used for investing activities	(106,894)	(108,105)	(96,221)
Cash flows provided from (used for) financing activities:
Proceeds from issuance of senior secured second lien notes	0	79,875	0
Senior Notes	275,000	275,000
Financing costs associated with issuance of debt	(154)	(1,992)	(175)
Borrowings under senior credit facility	17,000	183,250	129,000
Repayments under senior credit facility	(17,000)	(196,750)	(115,500)
Principal payments on capital leases	(1,811)	(1,651)	(1,480)
Proceeds from lease financing obligations	2,692	0	1,816
Net cash provided from (used for) financing activities	727	62,732	13,661
Net increase (decrease) in cash	(25,398)	27,410	(20,272)
Cash, beginning of period	29,412	2,002	22,274
Cash, end of period	4,014	29,412	2,002
Supplemental disclosures:
Interest paid on long-term debt	23,098	20,885	17,415
Interest paid on lease financing obligations	105	119	105
Accruals for capital expenditures	7,605	6,839	4,032
Non-cash reduction of capital lease assets and obligation	2,538	1,744	0
Income taxes paid (refunded), net	(270)	(63)	153
Capital lease obligations incurred	$ 49	$ 316	$ 583