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Note 13 - Income Taxes (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 21.00% |
Effective Income Tax Rate Reconciliation, Percent, Total | 28.00% | 27.00% | 34.00% | 26.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent |  |  | 5.00% | 5.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent, Total |  |  | 2.00% | 1.00%
Effective Income Tax Rate Reconciliation, Disposition of Asset, Percent |  |  | 6.00% |
Income Taxes Paid, Net, Total |  |  | $ 12 | $ 27
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | $ 564 |  | 564 |
Domestic Tax Authority [Member] |  |  |  |
Operating Loss Carryforwards, Total | 776 |  | 776 |
State and Local Jurisdiction [Member] |  |  |  |
Operating Loss Carryforwards, Total | $ 837 |  | $ 837 |

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