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Income taxes, Components of income tax expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Current [Abstract] |  |
Federal | $ (154) | $ (1)
State | 37 | 51
Foreign | 108 | 85
Income taxes current | (9) | 135
Deferred [Abstract] |  |
Federal | 5,991 | 825
State | 293 | 132
Foreign | 20 | 63
Income taxes deferred | 6,304 | 1,020
Income tax expense | $ 6,295 | $ 1,155
Effective tax rate | (176.40%) | 19.60%
Income taxes [Abstract] |  |
Foreign income before taxes | $ 79 | $ 322
Federal [Member] |  |
Income taxes [Abstract] |  |
Net operating loss carryforwards not subject to expiration | 276 |
State [Member] |  |
Income taxes [Abstract] |  |
Net operating loss carryforwards subject to expiration | 135 |
Tax credit carryforwards subject to expiration | 0 |
R&D Credit [Member] |  |
Income taxes [Abstract] |  |
Tax credit carryforwards subject to expiration | $ 903 |
Tax credit carryforwards expiration period | 20 years |

X
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