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Note 6 - Goodwill and Other Acquired Intangible Assets, Net Schedule of Goodwill (Details) - Real Estate segment - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Goodwill [Roll Forward] |  |  |
Goodwill, Gross, Beginning of Period | $ 201,099 | $ 200,561 |
Goodwill, Acquired During Period | 0 | 538 |
Goodwill, Gross, End of Period | 201,099 | 201,099 |
Goodwill, Impaired, Accumulated Impairment Loss, Beginning of Period | (191,297) | (186,469) |
Goodwill, Impairment Loss | 0 | (4,828) |
Goodwill, Impaired, Accumulated Impairment Loss, End of Period | (191,297) | (191,297) |
Goodwill, Net | $ 9,802 | $ 9,802 | $ 14,092

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