Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Consolidated Statements of Operations Information for Each of Previous Eight Quarters

	December 31, 2014			September 30, 2014			June 30, 2014			March 31, 2014			December 31, 2013			September 30, 2013			June 30, 2013			March 31, 2013
	(in thousands, except per share amounts)
Revenue:
Product revenue	$	15,393		$	15,153		$	15,551		$	14,335		$	10,350		$	12,184		$	13,014		$	11,934
Royalty and other revenue		1,000			125			—			1,991			5,032			6,638			4,495			4,522
Total revenue		16,393			15,278			15,551			16,326			15,382			18,822			17,509			16,456
Operating expenses:
Cost of product revenue		8,084			6,931			6,671			6,335			4,627			5,659			5,298			6,897
Cost of royalty and other revenue		—			—			—			—			738			724			643			577
Research and development		1,328			1,650			1,430			1,201			1,422			1,430			2,306			2,183
Selling, general and administrative		4,975			4,471			4,326			3,384			3,367			2,902			3,124			3,308
Contingent consideration – fair value adjustments		1,945			10			18			98			45			65			35			(54	)
Gain on bargain purchase		—			—			—			—			—			—			—			—
Total operating expenses		16,332			13,062			12,445			11,018			10,199			10,780			11,406			12,911
Loss income from operations		61			2,216			3,106			5,308			5,183			8,042			6,103			3,545
Investment income		59			64			85			102			98			76			65			62
Interest expense		(12	)		(11	)		(13	)		(14	)		(12	)		(12	)		(12	)		(14	)
Other income (expense)		134			(14	)		65			2			(54	)		37			(122	)		29
Income before income taxes		242			2,255			3,243			5,398			5,215			8,143			6,034			3,622
Income tax provision		640			789			418			1,121			1,887			2,255			1,495			1,284
Net income	$	(398	)	$	1,466		$	2,825		$	4,277		$	3,328		$	5,888		$	4,539		$	2,338
Earnings per share:
Basic	$	(0.01	)	$	0.04		$	0.09		$	0.13		$	0.10		$	0.18		$	0.14		$	0.07
Diluted	$	(0.01	)	$	0.04		$	0.09		$	0.13		$	0.10		$	0.18		$	0.14		$	0.07
Weighted average shares outstanding:
Basic		32,747			32,677			32,234			31,963			31,916			31,858			31,644			31,241
Diluted		32,747			33,327			33,076			31,855			32,708			32,552			32,317			31,855