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Note 10 - Revenue 1 (Details Textual) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Minimum [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 2 years |  |
Minimum [Member] | Active Domain Name Contracts [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 1 year |  |
Maximum [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 15 years |  |
Maximum [Member] | Active Domain Name Contracts [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 10 years |  |
Operating Segments [Member] |  |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 353,374 | $ 329,013 | $ 309,215
Wavelo [Member] | Operating Segments [Member] |  |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 39,003 | $ 35,979 | $ 23,632
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |  |
Number of Customers | 1 | 1 |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | One Customer [Member] |  |  |
Concentration Risk, Percentage | 56.00% | 59.00% |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |
Number of Customers |  |  | 0
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Wavelo [Member] | Operating Segments [Member] |  |  |
Number of Customers | 1 | 1 |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | One Customer [Member] | Wavelo [Member] | Operating Segments [Member] |  |  |
Concentration Risk, Percentage | 10.70% | 10.70% |
Revenue from Contract with Customer, Including Assessed Tax | $ 38,800 | $ 36,200 |

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