Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016
Cash flows from operating activities:
Net income	$ 2,870	$ 3,377
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment	5,021	4,537
Equity-based compensation expense	2,308	1,364
Other, net	52	(555)
Changes in assets and liabilities:
Accounts and notes receivable	(1,089)	(669)
Prepaid expenses and other current assets	(88)	(527)
Accounts payable	(861)	(643)
Accrued expenses and other current liabilities	(338)	(3,265)
Other assets and liabilities, net	229	(515)
Net cash provided by operating activities	8,104	3,104
Cash flows from investing activities:
Purchase of property and equipment	(6,597)	(6,879)
Other investing activities	(273)	(219)
Net cash used in investing activities	(6,870)	(7,098)
Cash flows from financing activities:
Payments on long-term debt and obligations under capital leases	(1,111)	(833)
Purchases of common stock		(3,153)
Other financing activities	(2)
Net cash used in financing activities	(1,113)	(3,986)
Increase (decrease) in cash and cash equivalents	121	(7,980)
Cash and cash equivalents at beginning of period	6,632	13,424
Cash and cash equivalents at end of period	6,753	5,444
Supplemental disclosures:
Property and equipment obligations accrued at beginning of period	2,587	1,845
Property and equipment obligations accrued at end of period	969	906
Tax distributions obligation accrued at end of period		1,319
Cash paid for interest	395	338
Cash paid for income taxes	$ 1,838	$ 3,511