Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Data

Schedule of quarterly financial data

		Three months ended
		December 31,		September 30,		June 30,		March 31,
		(in thousands, except per share data)
2018
Operating results:
Total revenues	$	66,965	$	65,280	$	63,069	$	62,340
Cost of product revenues		40,345		39,477		39,204		39,055
Cost of licensing and other revenues		2,444		2,202		1,791		1,537
Gross profit		24,176		23,601		22,074		21,748
Operating expenses		53,903		50,767		49,292		52,265
Interest expense and other (expense) income, net		(2,128)		(2,332)		(6,493)		(2,252)
Income tax expense		14		(118)		(113)		(104)
Net loss	$	(31,841)	$	(29,616)	$	(33,824)	$	(32,873)
Per share data:
Net loss - basic	$	(0.51)	$	(0.49)	$	(0.62)	$	(0.61)
Net loss - diluted	$	(0.51)	$	(0.49)	$	(0.62)	$	(0.61)
2017 (As Revised)
Operating results:
Total revenues	$	52,050	$	55,910	$	52,283	$	49,382
Cost of product revenues		35,153		33,558		33,709		33,088
Cost of licensing and other revenues		1,572		1,054		850		612
Gross profit		15,325		21,298		17,724		15,682
Operating expenses		61,956		47,087		46,095		50,232
Interest expense and other (expense) income, net		(405)		(1,914)		(631)		1,117
Income tax expense		(181)		(162)		(64)		(47)
Net loss	$	(47,217)	$	(27,865)	$	(29,066)	$	(33,480)
Per share data:
Net loss - basic	$	(0.88)	$	(0.52)	$	(0.55)	$	(0.63)
Net loss - diluted	$	(0.90)	$	(0.52)	$	(0.55)	$	(0.65)