Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Share data	3 Months Ended				9 Months Ended
	Oct. 01, 2011		Oct. 02, 2010		Oct. 01, 2011		Oct. 02, 2010
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 78,593		$ 72,349		$ 249,839		$ 181,828
Cost of sales	54,248	[1]	48,342	[1]	166,664	[1]	119,617	[1]
Gross profit	24,345		24,007		83,175		62,211
Operating expenses:
Marketing	14,002	[2]	11,145	[2]	41,953	[2]	25,496	[2]
General and administrative	9,096	[2]	8,156	[2]	25,739	[2]	20,288	[2]
Fulfillment	4,449	[2]	4,102	[2]	14,048	[2]	10,269	[2]
Technology	1,676	[2]	1,665	[2]	5,531	[2]	3,841	[2]
Amortization of intangibles	338		919		3,328		1,164
Total operating expenses	29,561		25,987		90,599		61,058
(Loss) income from operations	(5,216)		(1,980)		(7,424)		1,153
Other income (expense):
Other income	201		134		279		185
Interest expense	(291)		(214)		(758)		(214)
Total other expense, net	(90)		(80)		(479)		(29)
(Loss) income before income taxes	(5,306)		(2,060)		(7,903)		1,124
Income tax provision	2		10,979		215		12,154
Net loss	$ (5,308)		$ (13,039)		$ (8,118)		$ (11,030)
Basic net loss per share	$ (0.17)		$ (0.43)		$ (0.27)		$ (0.36)
Diluted net loss per share	$ (0.17)		$ (0.43)		$ (0.27)		$ (0.36)
Shares used in computation of basic net loss per share	30,571,472		30,357,988		30,521,529		30,225,194
Shares used in computation of diluted net loss per share	30,571,472		30,357,988		30,521,529		30,225,194

[1] Excludes depreciation and amortization expense which is included in marketing, general and administrative and fulfillment costs.

[2] Includes share-based compensation expense related to option grants, as follows: Thirteen WeeksEndedOctober 1, 2011 Thirteen WeeksEndedOctober 2, 2010 Thirty-Nine WeeksEndedOctober 1, 2011 Thirty-Nine WeeksEndedOctober 2, 2010 Marketing $ 82 $ 73 $ 329 $ 265 General and administrative 387 447 1,162 1,447 Fulfillment 100 72 276 261 Technology 54 48 179 139 Total share-based compensation expense $ 623 $ 640 $ 1,946 $ 2,112