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Income tax (Tables) | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure [Abstract] |
Schedule of loss before income taxes from US and Foreign sources |
|  | 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 |
|  | 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 |
|  | 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 |  |  | - |  |  |  | - |

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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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