Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Schedule of Anti-dilutive Equity Instruments Excluded from Calculation of Diluted Net Loss Per Share

The following equity instruments were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented:

	Six months ended June 30,
	2022		2021
Awards under equity incentive plan		6,064,278		5,125,189
Non-vested restricted shares and restricted stock units		1,141,875		357,022
Warrants to purchase common stock		77,793		3,552,695
Total		7,283,946		9,034,906

Reconciles Basic Earnings Per Share and Diluted Earnings Per Share of Common Stock

The following table calculates basic earnings per share of common stock and diluted earnings per share of common stock for the three and six months ended June 30, 2022 and 2021 (in thousands, except share and per share amounts):

	Three months ended June 30,						Six months ended June 30,
	2022			2021			2022			2021
Net loss	$	(9,164	)	$	(10,941	)	$	(17,464	)	$	(21,158	)
Net loss attributable to common    stockholders		(9,164	)		(10,941	)		(17,464	)		(21,158	)
Undistributed earnings and net loss    attributable to common stockholders,    basic and diluted		(9,164	)		(10,941	)		(17,464	)		(21,158	)
Weighted-average common shares    outstanding, basic and diluted		152,771,103			152,460,531			152,770,434			114,934,938
Basic and diluted EPS	$	(0.06	)	$	(0.07	)	$	(0.11	)	$	(0.18	)