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Income Taxes - Reconciliation Of Income Tax Rates (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Effective Income Tax Rate Reconciliation, Amount |  |
Statutory rate | $ (1,889) | $ 964
Foreign tax rate differential | (306) | 20
State income taxes, net of federal benefit | 327 | 132
Non-deductible expenses | 200 | 153
Tax benefits related to disposition of the Test and Inspection Services business | 0 | (2,130)
Income tax credits | (261) | (227)
Change in income tax rates | 176 | 379
Tax on unremitted foreign earnings | 439 | (68)
Change in valuation allowance | 37,895 | 1,807
Other | 100 | 89
Total income tax expense | $ 36,681 | $ 1,119
Effective Income Tax Rate Reconciliation, Percent |  |
Statutory rate | 21.00% | 21.00%
Foreign tax rate differential | 3.40% | 0.40%
State income taxes, net of federal benefit | (3.60%) | 2.90%
Non-deductible expenses | (2.20%) | 3.30%
Tax benefits related to disposition of the Test and Inspection Services business | 0.00% | (46.40%)
Income tax credits | 2.90% | (4.90%)
Change in income tax rates | (2.00%) | 8.30%
Tax on unremitted foreign earnings | (4.90%) | (1.50%)
Change in valuation allowance | (421.20%) | 39.40%
Other | (1.10%) | 1.90%
Total income tax expense/ Effective rate | (407.70%) | 24.40%

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