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v3.23.3

Taxes (Narrative) (Details) $ in Thousands, £ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2021 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2022 GBP (£)
Taxes |  |  |  |  |
Income tax credits |  |  | $ 4,700 | $ 3,700 |
Income tax credits - UK research and development |  |  | 4,719 | 3,730 |
Income tax benefit | $ 934 | $ 2,586 | (4,717) | (3,728) |
Valuation allowance for deferred tax assets |  |  | 53,306 | 56,694 |
Increase in valuation allowance |  |  | 3,300 |  |
Federal |  |  |  |  |
Taxes |  |  |  |  |
NOLs carryforward |  |  | 3,600 | 2,500 |
State |  |  |  |  |
Taxes |  |  |  |  |
NOLs carryforward |  |  | $ 22,100 | 21,100 |
Operating loss carryforward, expiration date |  |  | Dec. 31, 2028 |  |
Foreign |  |  |  |  |
Taxes |  |  |  |  |
NOLs carryforward |  |  | $ 203,000 | $ 218,300 |
Percentage of tax rate adopted in respect of deferred tax assets measurement |  |  | 50.00% |  |
Annual NOL allowance restriction | £ |  |  |  |  | £ 5

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