Significant accounting policies (Tables)

9 Months Ended

Sep. 30, 2022

Significant accounting policies

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Basic and diluted loss per share:
Net (loss) income	$	(3,187,275)	$	(3,005,404)	$	(15,756,665)	$	(7,845,867)
Cumulative dividends on Series A preferred stock		—		(36,685)		—		(108,858)
Net (loss) income attributable to common stockholders	$	(3,187,275)	$	(3,042,089)	$	(15,756,665)	$	(7,954,725)
Basic and diluted weighted average number of shares outstanding		2,095,091		733,194		1,550,326		717,476
Basic and Diluted net (loss) per share attributable to common stockholders	$	(1.52)	$	(4.15)	$	(10.16)	$	(11.09)

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

	September 30,
	2022	2021
Series A warrants	334,036	334,036
Bridge warrants	8,275	7,275
Value appreciation rights	4,546	7,353
Options to purchase common stock	87,833	53,153
Series A preferred stock (if converted)	—	2,015
Legacy stock options	316	316
Legacy warrants	4,235	4,280
Warrants issued in the November 2021 Financing	539,063	—
Warrants issued in the August 2022 Financing	1,309,333	—
Warrants issued in exchange for Series A preferred stock (unexercised)	144,866	—
Restricted Stock Units	5,250	—
	2,437,752	408,428