Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Unaudited Financial Data

The following tables summarize the Company’s quarterly financial information for the years ended December 31, 2012 and 2011 (in thousands except per share amounts):

	Three Months Ended
	March 31, 2012			June 30, 2012			September 30, 2012			December 31, 2012
Revenue:
Product revenue	$	8,691		$	9,224		$	8,252		$	10,528
Cost of product revenue		5,514			5,574			4,411			5,117
Gross profit on product revenue		3,177			3,650			3,841			5,411
Government grants and cooperative agreements revenue		91			0			0			0
Operating expenses:
Research and development		1,824			1,712			1,903			2,164
Selling, general and administrative		5,966			6,686			6,219			6,794
Amortization of intangible assets		50			51			50			51
Total operating expenses		7,840			8,449			8,172			9,009
Loss from operations		(4,572	)		(4,799	)		(4,331	)		(3,598	)
Total non-operating income (expense), net		(4,227	)		2,933			926			1,993
Loss before income taxes		(8,799	)		(1,866	)		(3,405	)		(1,605	)
Provision for income taxes		35			41			55			111
Net loss	$	(8,834	)	$	(1,907	)	$	(3,460	)	$	(1,716	)
Net loss per common share:
Basic	$	(0.17	)	$	(0.04	)	$	(0.06	)	$	(0.03	)
Diluted	$	(0.17	)	$	(0.10	)	$	(0.08	)	$	(0.07	)

	Three Months Ended
	March 31, 2011			June 30, 2011			September 30, 2011			December 31, 2011
Revenue:
Product revenue	$	6,183		$	6,753		$	7,770		$	9,896
Cost of product revenue		3,529			4,074			4,726			6,206
Gross profit on product revenue		2,654			2,679			3,044			3,690
Government grants and cooperative agreements revenue		436			0			1,479			527
Operating expenses:
Research and development		1,808			1,994			1,814			1,562
Selling, general and administrative		5,528			6,207			5,380			5,938
Amortization of intangible assets		50			51			51			50
Total operating expenses		7,386			8,252			7,245			7,550
Loss from operations		(4,296	)		(5,573	)		(2,722	)		(3,333	)
Total non-operating income (expense), net		(779	)		(809	)		5,026			(4,353	)
Income (loss) before income taxes		(5,075	)		(6,382	)		2,304			(7,686	)
Provision for income taxes		23			27			44			49
Net income (loss)	$	(5,098	)	$	(6,409	)	$	2,260		$	(7,735	)
Net income (loss) per common share:
Basic	$	(0.11	)	$	(0.13	)	$	0.05		$	(0.16	)
Diluted	$	(0.11	)	$	(0.13	)	$	0.05		$	(0.16	)