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Note 11 - Revenue 1 (Details Textual) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024
Minimum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 2 years |  | 2 years |  |
Minimum [Member] | Active Domain Name Contracts [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 1 year |  | 1 year |  |
Maximum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 15 years |  | 15 years |  |
Maximum [Member] | Active Domain Name Contracts [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 10 years |  | 10 years |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |  |  |
Number of Customers | 1 | 1 | 1 | 1 |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Wavelo [Member] | Operating Segments [Member] |  |  |  |  |
Concentration Risk, Percentage | 12.00% |  | 12.00% | 11.00% |
Revenue from Contract with Customer, Excluding Assessed Tax | $ 11.3 | $ 9.8 | $ 34.4 | $ 29.2 |
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 |  |  | 51.00% |  | 56.00%

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