Selected Quarterly Financial Information (Unaudited)

12 Months Ended

Dec. 31, 2011

Selected Quarterly Financial Information (Unaudited) [Abstract]

Selected Quarterly Financial Information (Unaudited)

16. Selected Quarterly Financial Information (Unaudited)

The following table presents the quarterly operating results for 2011 and 2010:

	Quarter Ended
	March 31,			June 30,			September 30,			December 31,
2011:
Net sales	$	17,139		$	20,701		$	24,110		$	22,006
Total operating costs and expenses		18,776			22,045			27,051			27,813
Loss from operations		(1,637	)		(1,344	)		(2,941	)		(5,807	)
Net loss		(2,114	)		(1,976	)		(3,297	)		(6,993	)
Basic and diluted loss per common share:
Net loss	$	(0.11	)	$	(0.10	)	$	(0.14	)	$	(0.30	)

	Quarter Ended
	March 31,			June 30,			September 30,			December 31,
2010:
Net sales	$	8,829		$	12,173		$	10,899		$	12,706
Total operating costs and expenses		10,650			13,845			12,986			16,603
Loss from operations		(1,821	)		(1,672	)		(2,087	)		(3,897	)
Net loss		(2,541	)		(2,416	)		(2,990	)		(4,946	)
Preferred dividends, beneficial conversion and warrant modification charges		(582	)		(582	)		(2,896	)		(5,771	)
Net loss attributable to common shareholders	$	(3,123	)	$	(2,998	)	$	(5,886	)	$	(10,717	)
Basic and diluted loss per common share:
Net loss attributable to common shareholders	$	(2.15	)	$	(2.06	)	$	(4.04	)	$	(0.96	)

Note: Quarterly amounts may not add to annual amounts due to the effect of rounding on a quarterly basis.