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Note 5 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
Goodwill, Ending Balance | $ 130,410 | $ 130,410 | $ 130,410
Goodwill, Impairment Loss | 0 | 0 |
Finite-Lived Intangible Assets Acquired | $ 217 | $ 383 |
Customer Assets and Domain Names [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 7 years | 7 years |
Finite-Lived Intangible Assets Acquired | $ 200 | $ 400 |
Minimum [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 2 years | 2 years |
Maximum [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 15 years | 15 years |
Domain Services Operating Segment [Member] |  |  |
Goodwill, Ending Balance | $ 107,700 | $ 107,700 |
Goodwill Percentage Related to Operating Segments | 83.00% | 83.00% |
Network Access Services [Member] |  |  |
Goodwill, Ending Balance | $ 22,700 | $ 22,700 |
Goodwill Percentage Related to Operating Segments | 17.00% | 17.00% |

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