Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 28, 2016	Jun. 30, 2015
Operating activities
Net (loss) income	$ (16,460)	$ 310
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	13,977	13,843
Deferred income taxes	1,083	(1,544)
Restaurant impairments, closure costs and asset disposals	11,889	6,296
Amortization of debt issuance costs	58	49
Stock-based compensation	849	625
Changes in operating assets and liabilities:
Accounts receivable	(383)	242
Inventories	(301)	(473)
Prepaid expenses and other assets	4,171	(754)
Accounts payable	(4,802)	(329)
Deferred rent	2,835	3,322
Income taxes	42	1,130
Accrued expenses and other liabilities	(677)	(61)
Net cash provided by operating activities	12,281	22,656
Investing activities
Purchases of property and equipment	(24,016)	(21,861)
Acquisition of franchise restaurant	0	628
Net cash used in investing activities	(24,016)	(22,489)
Financing activities
Proceeds from issuance of long-term debt	205,620	182,326
Payments on long-term debt	(194,905)	(179,904)
Proceeds from exercise of stock options, warrants and employee stock purchase plan	876	1,792
Acquisition of treasury stock	0	4,136
Other financing activities	(2)	(138)
Net cash provided by (used in) financing activities	11,589	(60)
Effect of exchange rate changes on cash	127	(12)
Net (decrease) increase in cash and cash equivalents	(19)	95
Cash and cash equivalents
Beginning of period	1,912	1,906
End of period	$ 1,893	$ 2,001