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Note 11 - Revenue 1 (Details Textual) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2026 USD ($) | Mar. 31, 2025 USD ($)
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 |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |
Number of Customers | 1 | 1
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Wavelo [Member] | Operating Segments [Member] | One Customer [Member] |  |
Concentration Risk, Percentage | 11.00% | 12.00%
Revenue from Contract with Customer, Excluding Assessed Tax | $ 11.0 | $ 10.9
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 | 50.00% | 44.00%

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