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Note 9 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 35.00%
Net Operating Loss | $ 300 | $ 200 |
Income Tax Expense (Benefit), Continuing Operations, Valuation Allowance on Foreign Tax Credits and Net Operating Losses | 5,300 | 2,800 |
Effective Income Tax Rate Reconciliation, Changes in Tax Laws Included in Tax Act, Amount |  |  | $ (5,800)
Effective Income Tax Rate Reconciliation, Effect of Decrease in Federal Tax Rate on Deferred Taxes, Amount |  |  | (10,036)
Effective Income Tax Rate Reconciliation, Change in Valuation Allowance on Pre-2017 Foreign Tax Credits, Amount | 5,277 | 2,811 | 1,276
Effective Income Tax Rate Reconciliation, Non-creditable 2017 Foreign Tax, Amount | 515 |  | 2,903
Unrecognized Tax Benefits, Ending Balance |  |  | $ 15
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total | $ 0 | $ 0 |

X
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to change in valuation allowance on pre-2017 foreign tax credits. + References No definition available. + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to the re-measurement impact related to the changes in tax laws included in the Tax Act. + References No definition available. + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to effect of decrease in Federal Tax Rate on deferred taxes. + References No definition available. + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to non-creditable 2017 foreign tax. + References No definition available. + Details
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- Definition Amount of income tax expense (benefit) from continuing operations attributable to valuation allowance on foreign tax credits and net operating losses not expected to be utilized in the future for enacted changes in tax laws or rates or a change in the tax status of the entity. + References No definition available. + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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