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Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2021 | Sep. 01, 2021 | Aug. 09, 2021 | May 03, 2021
Income Tax Expense (Benefit), Total | $ (4,988) | $ (0) | $ (17,540) | $ (0) |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total | 98.00% |  | 161.00% |  |  |  |  |
Discrete Tax Benefit |  |  | $ 8,500 |  |  |  |  |
Stock Compensation Windfall Tax Benefits | $ 3,100 |  | $ 6,300 |  |  |  |  |
Effective Income Tax Rate Reconciliation, Before Discrete Items, Percent | 18.00% |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 21.00% |  |  |  |  |
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount |  |  | $ (8,500) |  |  |  |  |
GCI Acquisition [Member] |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities |  |  |  |  |  |  |  | $ 23,526
Sexton Acquisition [Member] |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities |  |  |  |  |  | $ 1,284 | $ 1,300 |
Forecast [Member] |  |  |  |  |  |  |  |
Deferred Tax Assets, Valuation Allowance, Total |  |  |  |  | $ 1,200 |  |  |

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