Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 01, 2014	Jul. 02, 2013
Operating activities
Net income	$ 4,951	$ 992
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,515	9,836
Deferred income taxes	3,389	450
Asset disposals, closure costs and restaurant impairments	408	498
Amortization of debt issuance costs and debt extinguishment expense	51	113
Stock-based compensation	665	3,933
Other noncash	0	(131)
Changes in operating assets and liabilities:
Accounts receivable	69	59
Inventories	(1,039)	(527)
Prepaid expenses and other assets	(1,957)	(719)
Accounts payable	651	1,238
Deferred rent	2,797	2,434
Income taxes	(163)	(107)
Accrued expenses and other liabilities	(2,226)	1,657
Net cash provided by operating activities	19,111	19,726
Investing activities
Purchases of property and equipment	(24,459)	(25,652)
Net cash used in investing activities	(24,459)	(25,652)
Financing activities
Proceeds from issuance of long-term debt	128,971	73,836
Payments on long-term debt	(125,654)	(168,110)
Issuance of common stock, net of transaction expenses	0	100,237
Conversion of Class B to Class A shares	(60)	0
Acquisition of treasury stock	(71)	0
Proceeds from exercise of stock options	1,904	0
Net cash provided by financing activities	5,090	5,963
Net (decrease) increase in cash and cash equivalents	(258)	37
Cash and cash equivalents
Beginning of period	968	581
End of period	$ 710	$ 618