Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 25, 2014	Jun. 26, 2013
Cash flows from operating activities:
Net income	$ 12,039	$ 350
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,347	4,945
Stock-based compensation	337	116
Interest accretion	185	3,217
Loss on disposal of assets	455	568
Impairment of property and equipment	36	20
Close-store reserve	357	81
Amortization of deferred financing costs	779	1,059
Amortization of favorable and unfavorable leases, net	(111)	(107)
Deferred income taxes, net	819	2,109
Changes in operating assets and liabilities:
Accounts and other receivables, net	258	(1,890)
Inventories	(10)	32
Prepaid expenses and other current assets	(1,095)	(481)
Income taxes payable	7	(3)
Other assets	468	63
Accounts payable	1,070	1,622
Accrued salaries and vacation	(622)	(463)
Accrued insurance	804	360
Other accrued expenses and liabilities	468	(1,088)
Net cash flows provided by operating activities	21,591	10,510
Cash flows from investing activities:
Purchase of property and equipment	(10,391)	(7,415)
Net cash flows used in investing activities	(10,391)	(7,415)
Cash flows from financing activities:
Payments on senior secured loan	(950)	(850)
Payment of obligations under capital leases	(131)	(110)
Net cash flows used in financing activities	(1,081)	(960)
Increase in cash and cash equivalents	10,119	2,135
Cash and cash equivalents, beginning of period	17,015	21,487
Cash and cash equivalents, end of period	27,134	23,622
Supplemental cash flow information
Cash paid during the period for interest	10,058	15,264
Cash paid during the period for income taxes, net	161	29
Unpaid purchases of property and equipment	2,035	569
Cashless stock option exercise	$ (27)