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Note 8 - Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
United States | $ 45,166 | $ 50,316 | $ 39,378
Current expense: |  |  |
Federal | 8,204 | 7,779 | 16,489
Foreign | 1,140 | 1,179 | 1,243
State and local | 1,205 | 1,042 | 1,231
Total current | 10,549 | 10,000 | 18,963
Deferred expense (benefit): |  |  |
Federal | (720) | 405 | (5,968)
Foreign | (379) | (125) | 51
State and local | (99) | 57 | (223)
Total deferred | (1,198) | 337 | (6,140)
Income tax expense | 9,351 | 10,337 | 12,823
UNITED STATES |  |  |
United States | 41,234 | 45,271 | 33,277
Foreign Countries [Member] |  |  |
United States | $ 3,932 | $ 5,045 | $ 6,101

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