Quarterly Data (Unaudited)

12 Months Ended

Dec. 31, 2018

Quarterly Data (Unaudited)

Quarterly Data (Unaudited)

17. Quarterly Data (Unaudited)

(In thousands, except per share data)

2018	Q1		Q2		Q3		Q4		Total Year
Product revenue	$	4,745	$	5,200	$	5,962	$	7,458	$	23,365
Service and other revenue		2,507		3,174		3,017		3,419		12,117
Collaboration and license revenue		269		269		1,612		—		2,150
Total revenue		7,521		8,643		10,591		10,877		37,632
Operating expenses:
Cost of product revenue		2,773		2,945		3,277		3,734		12,729
Cost of services and other revenue		1,576		1,725		1,719		1,935		6,955
Research and development		3,644		3,705		4,411		4,045		15,805
Selling, general and administrative		6,691		7,579		8,846		10,577		33,693
Total operating expenses		14,684		15,954		18,253		20,291		69,182
Loss from operations		(7,163)		(7,311)		(7,662)		(9,414)		(31,550)
Interest expense, net		(24)		16		30		24		46
Other (expense) income, net		(15)		(48)		(25)		81		(7)
Tax expense		—		—		—		(25)		(25)
Net loss	$	(7,202)	$	(7,343)	$	(7,657)	$	(9,334)	$	(31,536)
Reconciliation of net loss to net loss attributable to common stockholders:
Net loss		(7,202)		(7,343)		(7,657)		(9,334)		(31,536)
Net loss attributable to common stockholders		(7,202)		(7,343)		(7,657)		(9,334)		(31,536)
Net loss per share attributable to common stockholders, basic and diluted	$	(0.33)	$	(0.34)	$	(0.35)	$	(0.42)	$	(1.43)
Weighted-average common shares outstanding, basic and diluted		21,788,605		21,890,978		22,670,786		22,221,305		21,994,317

2017	Q1		Q2		Q3		Q4		Total Year
Product revenue	$	3,425	$	3,337	$	3,293	$	4,069	$	14,124
Service and other revenue		1,644		1,608		2,172		2,252		7,676
Collaboration and license revenue		269		268		269		268		1,074
Total revenue		5,338		5,213		5,734		6,589		22,874
Operating expenses:
Cost of product revenue		1,834		1,834		1,905		2,169		7,742
Cost of services and other revenue		1,144		1,198		1,264		1,539		5,145
Research and development		4,250		3,903		4,224		3,927		16,304
Selling, general and administrative		4,166		4,747		4,728		6,047		19,688
Total operating expenses		11,394		11,682		12,121		13,682		48,879
Loss from operations		(6,056)		(6,469)		(6,387)		(7,093)		(26,005)
Interest expense, net		(255)		(240)		(240)		(216)		(951)
Other (expense) income, net		(80)		77		13		(73)		(63)
Tax Expense		—		—		—		—		—
Net loss	$	(6,391)	$	(6,632)	$	(6,614)	$	(7,382)	$	(27,019)
Reconciliation of net loss to net loss attributable to common stockholders:
Net loss		(6,391)		(6,632)		(6,614)		(7,382)		(27,019)
Accretion of preferred stock to redemption value		(1,090)		(1,099)		(1,112)		(809)		(4,110)
Accrued dividends on preferred stock		(16)		(16)		(16)		(11)		(59)
Net loss attributable to common stockholders		(7,497)		(7,747)		(7,742)		(8,202)		(31,188)
Net loss per share attributable to common stockholders, basic and diluted	$	(3.18)	$	(3.21)	$	(3.13)	$	(1.06)	$	(8.30)
Weighted-average common shares outstanding, basic and diluted		2,357,503		2,416,984		2,475,166		7,731,514		3,756,954