Income tax (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of Loss Before Income Taxes from Us And Foreign Sources

The Company’s loss before income taxes from US and Foreign sources for the years ended December 31, 2022 and 2021, are as follows:

	2022			2021
United States		(25,424,002	)		(16,466,423	)
Outside United States		1,208,777			(1,198,341	)
Loss before income taxes		(24,215,225	)		(17,664,764	)

Schedule of U.S. Federal Statutory Tax Rate and the Company’s Effective Tax Rate

The following table summarizes the significant differences between the U.S. Federal statutory tax rate and the Company’s effective tax rate for financial statement purposes for the years ended December 31, 2022 and 2021:

	2022			2021
US Federal statutory federal income tax		21.00	%		21.00	%
State taxes		-2.52	%		3.94	%
Other deferred adjustments		3.03	%		-2.02	%
Change in tax rates		0	%		-1.53	%
Change in valuation allowance		-21.5	%		-21.39	%
Total income tax provision		0	%		0	%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to deferred tax assets and liabilities as of December 31, 2022 and 2021 are summarized as follows:

	2022			2021
Deferred tax assets
Net operating loss		14,997,873			12,702,731
Stock options		7,450,914			5,922,550
Federal tax credits		336,475			303,556
Basis difference in intangible and fixed assets		963,784			(206,925	)
Accrued payroll		11,203			169,242
Capital loss		350,526			-
Valuation allowance		(24,110,775	)		(18,891,154	)
Deferred tax assets, net		-			-