Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net (Loss) Income Per Share Attributable to Common Stockholders

The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company:

In thousands, except for net loss per share	2022			2021			2020
Net loss	$	(31,819	)	$	(25,325	)	$	(57,949	)
Accretion of redeemable series A-1    preferred stock		—			—			(17,601	)
Redeemable series A-1 preferred stock    deemed dividend		—			—			(24,341	)
Convertible and redeemable series A-2    preferred stock dividend		(16,400	)		(16,400	)		(6,970	)
Net loss attributable to common    stockholders – basic and diluted		(48,219	)		(41,725	)		(106,861	)
Weighted-average common shares    outstanding – basic and diluted		29,688			26,724			16,479
Net loss per share attributable to common    stockholders – basic and diluted	$	(1.62	)	$	(1.56	)	$	(6.48	)

Equity Shares Excluded from Calculation of Diluted Net Loss per Share Attributable to Common Stockholders

The following common stock equivalents were excluded from the calculation of diluted net loss per share attributable to common stockholders because their effect would have been anti-dilutive for the years ended December 31:

	2022 (1)		2021 (1)		2020 (1)
Stock options		3,435,261		1,687,413		2,237,910
Restricted stock		1,777,715		1,693,923		187,989
Series A-2		4,983,282		4,085,083		5,533,150
SARs		3,000,000		3,000,000		—
Warrants		—		—		116,350
Total		13,196,258		10,466,419		8,075,399

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(1) Includes 6,886,942, 4,051,206 and 728,143 equity shares that are out of the money as of December 31, 2022, 2021 and 2020, respectively.