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Note 7 - Goodwill and Other Acquired Intangible Assets, Net - Schedule of Other Intangible Assets (Details) - Real Estate segment - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Acquired Finite-Lived Intangible Assets [Line Items] |  |
Other Intangible Assets, Original Acquired Amount | $ 52,778 | $ 52,928
Other Intangible Assets, Accumulated Amortization and Impairment | (37,312) | (34,543)
Other Intangible Assets, Net Carrying Amount | 15,466 | 18,385
Client relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Other Intangible Assets, Original Acquired Amount | 43,550 | 43,550
Other Intangible Assets, Accumulated Amortization and Impairment | (29,748) | (27,269)
Other Intangible Assets, Net Carrying Amount | 13,802 | 16,281
Technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Other Intangible Assets, Original Acquired Amount | 8,285 | 8,435
Other Intangible Assets, Accumulated Amortization and Impairment | (6,988) | (6,789)
Other Intangible Assets, Net Carrying Amount | 1,297 | 1,646
Trade name and trademarks |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Other Intangible Assets, Original Acquired Amount | 480 | 480
Other Intangible Assets, Accumulated Amortization and Impairment | (461) | (404)
Other Intangible Assets, Net Carrying Amount | 19 | 76
Licenses |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Other Intangible Assets, Original Acquired Amount | 463 | 463
Other Intangible Assets, Accumulated Amortization and Impairment | (115) | (81)
Other Intangible Assets, Net Carrying Amount | $ 348 | $ 382

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