Significant accounting policies (Tables)

6 Months Ended

Jun. 30, 2022

Significant accounting policies

Summary of reconciliation of numerator and denominator of diluted net loss per share

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Basic and diluted loss per share:
Net (loss) income	$	(9,495,996)	$	(2,966,203)	$	(12,569,390)	$	(4,840,463)
Cumulative dividends on Series A preferred stock		—		(36,286)		—		(72,173)
Net (loss) income attributable to common stockholders	$	(9,495,996)	$	(3,002,489)	$	(12,569,390)	$	(4,912,636)
Basic and diluted weighted average number of shares outstanding		63,731,582		36,659,685		63,684,906		35,872,780
Basic and Diluted net (loss) per share attributable to common stockholders	$	(0.15)	$	(0.08)	$	(0.20)	$	(0.14)

Schedule of anti dilutive securities excluded in the computation of diluted loss per share

	June 30,
	2022	2021
Series A warrants	16,701,824	16,701,824
Bridge warrants	413,751	413,751
Value appreciation rights	227,277	367,671
Options to purchase common stock	2,657,640	184,456
Series A preferred stock (if converted)	116,849	100,753
Legacy stock options	15,781	15,781
Legacy warrants	211,770	219,928
Warrants issued in the November 2021 Financing	26,953,125	—
Restricted Stock Units	375,002	—
	47,673,019	18,004,164