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Note 22 - Equity-based Compensation - Detail of Equity Based Compensation by Plan (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Equity based compensation expense | $ 12,553 | $ 744 | $ 623
Membership Interests [Member] | Sponsor Entities [Member] |  |  |
Equity based compensation expense | 11,700 |  |
Equity Incentive Plan 2010 and 2006 Equity Incentive Plan [Member] | Restricted Stock and Restricted Stock Units [Member] |  |  |
Equity based compensation expense | 635 | 744 | 623
Equity Incentive Plan 2020 [Member] | Restricted Stock and Restricted Stock Units [Member] |  |  |
Equity based compensation expense | $ 218 |  |

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