Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2016	Jul. 01, 2015
Cash flows from operating activities:
Net income	$ 12,710	$ 14,021
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization	7,722	6,346
Stock-based compensation expense	139	443
Gain on recovery of insurance proceeds	(889)
Income tax receivable agreement expense	229	477
Gain on sale of restaurant	(33)
Loss on disposal of assets	466	166
Fire insurance proceeds for expenses paid	8
Impairment of property and equipment	56	13
Closed-store reserve	78	(152)
Amortization of deferred financing costs	152	152
Amortization of favorable and unfavorable leases, net	(20)	(93)
Excess income tax benefit related to share-based compensation plans	(253)
Deferred income taxes, net	8,716	9,775
Changes in operating assets and liabilities:
Accounts and other receivables, net	(607)	24
Inventories	140	225
Prepaid expenses and other current assets	(2,701)	312
Income taxes payable	214	(30)
Other assets	19	84
Accounts payable	(5,889)	257
Accrued salaries and vacation	355	(1,814)
Accrued insurance	(48)	757
Other accrued expenses and liabilities	454	(1,146)
Net cash flows provided by operating activities	21,018	29,817
Cash flows from investing activities:
Proceeds from sale of restaurant	1,465
Proceeds from asset disposition	992
Purchase of property and equipment	(14,311)	(8,869)
Net cash flows used in investing activities	(11,854)	(8,869)
Cash flows from financing activities:
Payments on revolver loan	(6,500)	(30,000)
Proceeds from issuance of common stock, net of expenses	566	4,069
Payment of obligations under capital leases	(88)	(102)
Excess income tax benefit related to share-based compensation plans	253
Net cash flows used in financing activities	(5,769)	(26,033)
Increase (Decrease) in cash and cash equivalents	3,395	(5,085)
Cash and cash equivalents, beginning of period	6,101	11,499
Cash and cash equivalents, end of period	9,496	6,414
Supplemental cash flow information
Cash paid during the period for interest	1,567	1,923
Cash paid during the period for income taxes, net	170	30
Unpaid purchases of property and equipment	$ 3,881	1,371
Cashless stock option exercise		$ (34)