Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 21, 2017	Mar. 22, 2016
Cash flows from operating activities:
Net income	$ 3,310	$ 5,411
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,816	4,285
Loss on disposal of restaurant property	5
Loan cost amortization	3
Equity based compensation	533	653
Deferred income taxes	(869)	(413)
Amortization of deferred lease incentives	(742)	(253)
Changes in operating assets and liabilities:
Inventory	659	545
Prepaid expenses and other assets	3,190	1,483
Accounts payable	402	(4,525)
Income taxes	2,175	1,973
Deferred rent obligations	386	(1,716)
Deferred revenue	(2,987)	(2,713)
Other liabilities	(1,802)	535
Net cash provided by operating activities	9,079	5,265
Cash flows from investing activities:
Purchases of property and equipment	(11,966)	(4,035)
Other investing activities	21	7
Net cash used in investing activities	(11,945)	(4,028)
Cash flows from financing activities:
Proceeds from long-term debt	22,000
Net payments of credit facility		(4,500)
Purchases of treasury stock	(25,097)
Proceeds from exercise of stock options	68	140
Net cash used in financing activities	(3,029)	(4,360)
Net change in cash and cash equivalents	(5,895)	(3,123)
Cash and cash equivalents at beginning of period	14,622	5,176
Cash and cash equivalents at end of period	8,727	2,053
Cash paid during the period for:
Interest	16	31
Income taxes	115	911
Non cash investing and financing activities:
Capital expenditures included in accounts payable at end of period	$ 787	$ 730