Income taxes - Effective income tax rate reconciliation (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Effective Income Tax Rate Reconciliation, Amount [Abstract] | ||
| Statutory U.S. Federal income tax | $ 719 | $ (12,482) |
| State income taxes, net | (650) | (1,720) |
| Change in valuation allowance | 2,371 | 8,811 |
| Warrant valuation | (4,927) | 4,763 |
| Tax effect of non-deductible equity instruments | 2,340 | 2,000 |
| Return to provision adjustment | 20 | (1,571) |
| Other | 164 | 199 |
| Total provision | $ 37 | $ 0 |
| Effective Income Tax Rate Reconciliation, Percent [Abstract] | ||
| Statutory U.S. Federal income tax | 21.00% | 21.00% |
| State income taxes, net | (19.00%) | 2.90% |
| Change in valuation allowance | 69.20% | (14.80%) |
| Warrant valuation | (143.90%) | (8.00%) |
| Tax effect of non-deductible equity instruments | 68.40% | (3.40%) |
| Return to provision adjustment | 0.60% | 2.60% |
| Other | 4.80% | (0.30%) |
| Total provision | 1.10% | (0.00%) |
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- Definition Effective Income Tax Rate Reconciliation, Nondeductible Expense, Equity Instruments, Amount No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Nondeductible Expense, Equity Instruments, Percent No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Return To Provision Adjustment, Amount No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Return To Provision Adjustment, Percent No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Warrant Valuation, Amount No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Warrant Valuation, Percent No definition available.
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- Definition Percentage 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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- References No definition available.
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage 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 changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage 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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage 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 other tax credits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- 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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- References No definition available.
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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 The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from 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 other adjustments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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 state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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