Condensed Consolidated Statement of Cash Flows Statement - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2017	Sep. 28, 2016
Interest Paid	$ 2,475	$ 2,355
Net income	8,657	17,921
Depreciation and amortization	13,646	11,796
Stock-based compensation expense	738	244
Fire insurance proceeds for expenses paid and lost profit	0	257
Income tax receivable agreement (income) expense	107	411
(Loss) gain on disposition of restaurants	0	28
Loss on disposal of assets	(724)	(524)
Gain on recovery of insurance proceeds, property, equipment and expenses	0	500
Gain On Business Interruption Insurance Recovery Property Equipment And Expenses	0	741
Gain on recovery of insurance proceeds, lost profits	0	502
Impairment of property and equipment	15,480	2,508
Closed-store reserve	1,813	116
Amortization of deferred financing costs	228	229
Amortization of favorable and unfavorable leases, net	(88)	(51)
Excess income tax benefit related to share-based compensation plans	0	169
Deferred income taxes, net	5,066	11,624
Increase (Decrease) in Accounts and Other Receivables	1,075	2,066
Increase (Decrease) in Inventories	121	(57)
Increase (Decrease) in Prepaid Expense and Other Assets	(88)	770
Increase (Decrease) in Income Taxes	(117)	134
Increase (Decrease) in Other Operating Assets	(28)	(94)
Increase (Decrease) in Accounts Payable	747	(6,269)
Increase (Decrease) in Employee Related Liabilities	3,561	2,538
Increase (Decrease) in Insurance Liabilities	104	140
Increase (Decrease) in Other Accrued Liabilities	2,499	1,673
Increase (Decrease) in Restricted Cash	(125)	0
Net cash flows provided by operating activities	52,210	39,670
Proceeds from sale of restaurant	0	1,465
Fire insurance proceeds for property and equipment	0	743
Purchase of property and equipment	28,295	26,465
Net cash flows used in investing activities	(28,295)	(24,257)
Payments on revolver loan	19,000	16,000
Proceeds from issuance of common stock upon exercise of stock options, net of expenses	93	978
Payment of obligations under capital leases	114	132
Excess income tax benefit related to share-based compensation plans	0	169
Net cash flows used in financing activities	(19,021)	(14,985)
Increase in cash and cash equivalents	4,894	428
Cash and cash equivalents	7,062	6,529
Income Taxes Paid	320	173
Capital Expenditures Incurred but Not yet Paid	$ 3,131	$ 4,599