Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jan. 03, 2012	Dec. 28, 2010	Dec. 29, 2009
Revenue:
Company stores	$ 214,837	$ 254,491	$ 295,607
Franchise and other revenue	11,597	8,162	6,030
Total revenue	226,434	262,653	301,637
Costs and operating expenses (income):
Cost of sales	49,503	61,307	72,669
Labor	67,868	85,189	100,589
Occupancy	31,092	38,561	43,888
Store operating	32,847	38,358	38,734
Depreciation and amortization	12,463	14,610	18,271
General and administrative	37,798	37,262	37,044
Store pre-opening	965	648	516
Impairment of long-lived assets	1,291	2,778	12,639
Store lease termination and closure	721	4,255	1,234
Other operating, net	210	(4,292)	(3,840)
Total costs and operating expenses	234,758	278,676	321,744
Loss from operations	(8,324)	(16,023)	(20,107)
Other income (expense):
Gain on derivative liabilities			1,597
Interest income	159	73	404
Interest expense	(473)	(547)	(6,905)
Total other expense, net	(314)	(474)	(4,904)
Loss before income taxes	(8,638)	(16,497)	(25,011)
Income tax benefit (expense)	340	(159)	1,066
Net loss	(8,298)	(16,656)	(23,945)
Redeemable preferred stock dividends and deemed dividends	(2,331)	(4,077)	(1,860)
Net loss attributable to common stockholders	$ (10,629)	$ (20,733)	$ (25,805)
Weighted-average shares used in the computation of loss per share:
Basic	66,310,654	58,711,495	53,632,299
Diluted	66,310,654	58,711,495	53,632,299
Loss per share:
Basic	$ (0.16)	$ (0.35)	$ (0.48)
Diluted	$ (0.16)	$ (0.35)	$ (0.48)