Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2015	Dec. 30, 2014	Dec. 31, 2013
Operating activities
Net (loss) income	$ (13,765)	$ 11,428	$ 6,665
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	27,802	24,787	20,623
(Benefit) provision for income taxes	(8,878)	6,330	4,206
Excess tax benefit on stock-based compensation	0	(253)	(201)
Restaurant impairments, closure costs and asset disposals	28,927	1,391	1,164
extinguishment expense	98	101	710
Stock-based compensation	1,469	1,330	4,230
Other noncash	0	0	(248)
Changes in operating assets and liabilities:
Accounts receivable	(437)	(75)	538
Inventories	(1,058)	(1,840)	(1,181)
Prepaid expenses and other assets	(1,025)	(1,768)	(1,518)
Accounts payable	2,794	2,661	(230)
Deferred rent	7,143	6,390	5,833
Income taxes	(193)	(24)	392
Accrued expenses and other liabilities	1,629	(1,431)	2,651
Net cash provided by operating activities	44,506	49,027	43,634
Investing activities
Purchases of property and equipment	(50,093)	(56,352)	(54,429)
Acquisition of franchise restaurants	(628)	(15,708)	0
Net cash used in investing activities	(50,721)	(72,060)	(54,429)
Financing activities
Proceeds from issuances of long-term debt	425,517	310,479	136,357
Payments on long-term debt	(384,771)	(289,292)	(224,526)
Debt issuance costs	(249)	0	(124)
Acquisition of treasury stock	(35,000)	(71)	(2,777)
Issuance of common stock, net of transaction expenses	0	0	100,069
Proceeds from exercise of stock options, warrants and employee stock purchase plan	952	2,676	1,982
Excess tax benefit on stock-based compensation	0	253	201
Other financing activities	(94)	(74)	0
Net cash provided by financing activities	6,355	23,971	11,182
Effect of exchange rate changes on cash	(134)	0	0
Net increase in cash and cash equivalents	6	938	387
Cash and cash equivalents
Beginning of year	1,906	968	581
End of year	$ 1,912	$ 1,906	$ 968