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Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Income Tax Expense (Benefit), Total | $ 871 | $ 1,280 | $ 1,471 | $ 2,150
Effective Income Tax Rate Reconciliation, Percent, Total | 23.80% | 25.10% | 22.20% | 25.50%
Effective Income Tax Rate Reconciliation, Change in GILTI, Percent | 2.00% |  | 2.00% |
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Acquisition Cost, Percent |  | 2.80% |  | 1.70%

X
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