EXHIBIT 12.1

Computation of Ratio of Earnings to Fixed Charges
(Dollars in thousands, except ratios)

	Year Ended December 31,															Quarter Ended
																April 4,			July 4,			October 3,
	2004			2005			2006			2007			2008			2009			2009			2009
				(Restated)
Net loss before income taxes	$	(16,643	)	$	(14,394	)	$	(27,674	)	$	(22,889	)	$	(18,858	)	$	(1,608	)	$	(67	)	$	(843	)
Add: Fixed charges		211			801			2,579			2,780			3,178			787			772			706
Total earnings (loss)	$	(16,432	)	$	(13,593	)	$	(25,095	)	$	(20,109	)	$	(15,680	)	$	( 821	)	$	705		$	(137	)
Fixed charges:
Interest expense	$	102		$	661		$	2,394		$	2,542		$	2,923		$	724		$	709		$	648
Estimated rent interest expense		109			140			185			238			255			63			63			58
Total fixed charges	$	211		$	801		$	2,579		$	2,780		$	3,178		$	787		$	772		$	706
Ratio of earnings to fixed charges		—			—			—			—			—			—			0.91			—
Deficiency of earnings available to cover fixed charges	$	(16,643	)	$	(14,394	)	$	(27,674	)	$	(22,889	)	$	(18,858	)	$	(1,608	)		—		$	(843	)