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Note 5 - Income Taxes - Income Taxes Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Provision for income taxes at federal statutory rate | $ 1,030 | $ 863
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00%
State income taxes, net of federal benefit | $ (125) | $ 68
State income taxes, net of federal benefit, rate | (2.50%) | 1.60%
Permanent differences | $ (19) | $ 74
Permanent differences, rate | (0.40%) | 1.80%
Goodwill impairment | $ 517 | $ 0
Goodwill impairment, rate | 10.50% | 0.00%
Return to provision adjustment | $ (223) | $ 0
Return to provision adjustment, rate | (4.50%) | 0.00%
Foreign tax rate differential | $ 1,016 | $ 731
Foreign tax rate differential, rate | 20.70% | 17.80%
GILTI tax | $ 323 | $ 401
GILTI tax, rate | 6.60% | 9.70%
Change in valuation allowance | $ 308 | $ 0
Change in Valuation Allowance, rate | 6.30% | 0.00%
Other | $ (50) | $ (29)
Other, rate | (1.10%) | (0.60%)
Net expense | $ 2,777 | $ 2,108
Net expense, rate | 56.60% | 51.30%

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