Consolidated Statements Of Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Balance beginning, value at Dec. 30, 2008	$ 55	$ 358,258	$ (317,892)	$ 40,421
Balance beginning, shares at Dec. 30, 2008	54,690,728
Share-based compensation expense		1,274		1,274
Common stock repurchased pursuant to repayment of Financing Agreement	(2)	(2,497)		(2,499)
Common stock repurchased pursuant to repayment of Financing Agreement, shares	(2,000,000)
Issuance of common stock pursuant to stock plans, value		29		29
Issuance of common stock pursuant to stock plans, shares	21,800
Beneficial conversion feature and warrants issued related to redeemable preferred stock		1,116		1,116
Accretion of redeemable preferred stock		(328)		(328)
Redeemable preferred stock dividends		(1,532)		(1,532)
Net loss			(23,945)	(23,945)
Balance ending, value at Dec. 29, 2009	53	356,320	(341,837)	14,536
Balance ending, shares at Dec. 29, 2009	52,712,528
Share-based compensation expense		1,146		1,146
Issuance of common stock pursuant to stock plans, value		149		149
Issuance of common stock pursuant to stock plans, shares	278,133
Conversion of redeemable preferred stock, value	11	12,279		12,290
Conversion of redeemable preferred stock, shares	10,686,300
Accretion of redeemable preferred stock		(1,775)		(1,775)
Redeemable preferred stock dividends		(2,302)		(2,302)
Restricted shares vested	58,000
Net loss			(16,656)	(16,656)
Balance ending, value at Dec. 28, 2010	64	365,817	(358,493)	7,388
Balance ending, shares at Dec. 28, 2010	63,734,961
Share-based compensation expense		1,256		1,256
Issuance of common stock pursuant to stock plans, value	1	942		943
Issuance of common stock pursuant to stock plans, shares	587,924
Conversion of redeemable preferred stock, value	3	3,343		3,346
Conversion of redeemable preferred stock, shares	2,909,600
Accretion of redeemable preferred stock		(672)		(672)
Redeemable preferred stock dividends		(1,659)		(1,659)
Restricted shares vested	48,000
Net loss			(8,298)	(8,298)
Balance ending, value at Jan. 03, 2012	$ 68	$ 369,027	$ (366,791)	$ 2,304
Balance ending, shares at Jan. 03, 2012	67,280,485