Income taxes (Details) - USD ($) |
12 Months Ended | |
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Dec. 31, 2021 |
Dec. 31, 2020 |
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| Income Tax Disclosure [Abstract] | ||
| Computed expected benefit of income taxes | $ (1,773,096) | $ (1,242,363) |
| Stock-based compensation | 925,449 | 593,885 |
| Non-deductible interest expense | 334,556 | 79,418 |
| Expiry of tax credits | 773,050 | 929,432 |
| True up of prior year balances | 99,348 | 1,214,608 |
| Increase (decrease) in valuation allowance | (359,307) | (1,574,980) |
| Income tax provision | ||
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- References No definition available.
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- Definition Amount of income (loss) from continuing operations, nonoperating income (expense) and income (loss) from equity method investments, before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of interest income (expense). No definition available.
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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