Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2021

Stockholders' Equity

Schedule of Shareholder's equity

						Accumulated
	Common	Common		Additional		Other				Total
	Stock	Stock Par		Paid-In		Comprehensive		Accumulated		Stockholders’
	Shares	Value		Capital		Income		Deficit		Equity
	(In thousands, except share amounts)
Consolidated balance at December 31, 2020	39,603,771	$	40	$	1,279,824	$	2,589	$	(1,073,096)	$	209,357
Shares issued under stock option and employee stock purchase plans	10,867		—		74		—		—		74
Stock-based compensation	—		—		1,275		—		—		1,275
Unrealized loss on marketable securities	—		—		—		(2)		—		(2)
Net loss	—		—		—		—		(16,538)		(16,538)
Consolidated balance at March 31, 2021	39,614,638	$	40	$	1,281,173	$	2,587	$	(1,089,634)	$	194,166
Shares issued under stock option and employee stock purchase plans	2,058		—		(25)		—		—		(25)
Stock-based compensation	—		—		1,509		—		—		1,509
Unrealized gain on marketable securities	—		—		—		5		—		5
Net loss	—		—		—		—		(13,373)		(13,373)
Consolidated balance at June 30, 2021	39,616,696	$	40	$	1,282,657	$	2,592	$	(1,103,007)	$	182,282
Shares issued under stock option and employee stock purchase plans	201,406		—		2,004		—		—		2,004
Shares issued in underwritten offering, net	6,845,238		7		269,886		—		—		269,893
Stock-based compensation	—		—		3,029		—		—		3,029
Unrealized loss on marketable securities	—		—		—		(44)		—		(44)
Net loss	—		—		—		—		(20,452)		(20,452)
Consolidated balance at September 30, 2021	46,663,340	$	47	$	1,557,576	$	2,548	$	(1,123,459)	$	436,712

						Accumulated
	Common	Common		Additional		Other				Total
	Stock	Stock Par		Paid-In		Comprehensive		Accumulated		Stockholders’
	Shares	Value		Capital		Income		Deficit		Equity
	(In thousands, except share amounts)
Consolidated balance at December 31, 2019	16,972,077	$	17	$	1,104,706	$	2,619	$	(1,013,316)	$	94,026
Shares issued under stock option and employee stock purchase plans	12,573		—		24		—		—		24
Shares issued in connection with at the market agreement	746,152		1		1,613		—		—		1,614
Stock-based compensation	—		—		686		—		—		686
Unrealized loss on marketable securities	—		—		—		(22)		—		(22)
Net loss	—		—		—		—		(12,625)		(12,625)
Consolidated balance at March 31, 2020	17,730,802	$	18	$	1,107,029	$	2,597	$	(1,025,941)	$	83,703
Shares issued in connection with at the market agreement	5,978,452		6		23,686		—		—		23,692
Shares issued in underwritten offering, net	15,384,614		15		141,346		—		—		141,361
Stock-based compensation	—		—		722		—		—		722
Unrealized loss on marketable securities	—		—		—		(3)		—		(3)
Net loss	—		—		—		—		(11,031)		(11,031)
Consolidated balance at June 30, 2020	39,093,868	$	39	$	1,272,783	$	2,594	$	(1,036,972)	$	238,444
Shares issued under stock option and employee stock purchase plans	68,204		—		194		—		—		194
Shares issued in connection with at the market agreement	400,400		1		4,296		—		—		4,297
Stock-based compensation	—		—		1,250		—		—		1,250
Unrealized gain on marketable securities	—		—		—		14		—		14
Net loss	—		—		—		—		(14,224)		(14,224)
Consolidated balance at September 30, 2020	39,562,472	$	40	$	1,278,523	$	2,608	$	(1,051,196)	$	229,975