CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (29,660,000)	$ (6,553,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	5,148,000	5,285,000
Stock-based compensation	502,000	230,000
Deferred income taxes	10,201,000	(1,905,000)
Gift card breakage	(170,000)	(212,000)
Amortization of deferred income for co-branded credit card	(330,000)	(858,000)
Amortization of deferred rent	(1,019,000)	(1,656,000)
Amortization of deferred financing costs	37,000
Change in assets and liabilities:
Decrease (increase) in receivables and income tax receivable	(275,000)	836,000
Increase in inventories	(342,000)	(1,731,000)
Decrease (increase) in prepaid expenses and other current assets	385,000	(399,000)
Increase (decrease) in accounts payable	(3,416,000)	1,409,000
Increase (decrease) in accrued liabilities, accrued compensation and other liabilities	1,371,000	(760,000)
Net cash used in operating activities	(17,568,000)	(6,314,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of marketable securities	(2,000,000)	(8,285,000)
Maturities of marketable securities	5,013,000	9,284,000
Proceeds from insurance recovery		190,000
Certificates of deposit - restricted	1,250,000
Purchase of equipment and leasehold improvements	(5,124,000)	(7,010,000)
Net cash used in investing activities	(861,000)	(5,821,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from the issuance of common stock	13,419,000
Payment of issuance costs	(2,046,000)
Payments of deferred financing costs	(941,000)
Net cash provided by financing activities	10,432,000
Net decrease in cash and equivalents	(7,997,000)	(12,135,000)
Cash and equivalents, at beginning of period	12,360,000	22,509,000
Cash and equivalents, at end of period	4,363,000	10,374,000
Supplemental disclosure of cash flow information:
Income taxes paid	115,000	209,000
Supplemental disclosure of non-cash investing and financing activities:
Accrued fixed asset additions	425,000	59,000
Accrued issuance costs	46,000
Accrued deferred financing costs	136,000
Prepaid stock-based compensation	$ 6,000	$ 24,000