8. Net and Comprehensive (Loss) Income per Share Attributable to Common Stockholders

The following table sets forth the computation of the Company’s basic and diluted net and comprehensive (loss) income per share attributable to common stockholders for the periods presented:

	Three Months Ended June 30,					Six Months Ended June 30,
	2021			2020		2021			2020
Numerator:
Net and comprehensive (loss) income attributable to common stockholders	$	(4,407,935	)	$	9,276,032	$	(8,849,674	)	$	5,357,369
Denominator
Weighted average common shares used in computing EPS
Basic		47,372,581			40,588,004		47,327,701			40,588,004
Diluted		47,372,581			40,905,288		47,327,701			40,747,960
Basic and diluted EPS	$	(0.09	)	$	0.23	$	(0.19	)	$	0.13

Holders of non-vested stock-based compensation awards do not have voting rights.

The following weighted average common stock equivalents were excluded from the calculation of basic and diluted net and comprehensive (loss) income per share attributable to common stockholders for the periods presented because including them would have had an anti-dilutive effect:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Options to purchase common stock		1,594,647		3,846,560		1,611,297		4,094,423
Warrants to purchase common stock		550,000		600,000		550,000		600,000