Selected Quarterly Financial Data

12 Months Ended

Dec. 31, 2016

Selected Quarterly Financial Data [Abstract]

Selected Quarterly Financial Data

13. Selected Quarterly Financial Data (Unaudited)

The following table provides the selected quarterly financial data for the years ended December 31, 2016 and 2015 (in thousands, except per share data):

	Quarter Ended
	2016								2015
	December 31,		September 30,		June 30,		March 31,		December 31,		September 30,		June 30,		March 31,
Revenue	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Operating expenses:
General and administrative		870		893		642		528		417		408		243		156
Research and development		1,806		1,739		1,453		990		951		659		547		421
Amortization of intangible assets		167		166		166		166		167		167		166		166
Total operating expenses		2,843		2,798		2,261		1,684		1,535		1,234		956		743
Other income:
Interest income		34		31		3		—		—		—		—		—
Total other income		34		31		3		—		—		—		—		—
Loss from operations, before income taxes		(2,809)		(2,767)		(2,258)		(1,684)		(1,535)		(1,234)		(956)		(743)
Income tax benefit		—		—		—		—		(518)		(483)		(357)		(299)
Net loss		(2,809)		(2,767)		(2,258)		(1,684)		(1,017)		(751)		(599)		(444)
Other comprehensive loss:
Unrealized gain (loss) on available-for-sale securities, net of tax:		1		(8)		—		—		—		—		—		—
Comprehensive loss	$	(2,808)	$	(2,775)	$	(2,258)	$	(1,684)	$	(1,017)	$	(751)	$	(599)	$	(444)
Net loss per share
Basic and diluted net loss per share	$	(0.21)	$	(0.21)	$	(0.23)	$	(0.22)	$	(0.13)	$	(0.10)	$	(0.08)	$	(0.06)
Weighted average shares used to compute net loss per common share — basic and diluted		13,315		13,315		9,791		7,565		7,565		7,565		7,565		7,565