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Note 10 - Revenue 1 (Details Textual) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 | Jan. 01, 2022 USD ($)
Contract with Customer, Liability, Total | $ 145,131 | $ 147,793 |  | $ 147,800
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |  |  |
Number of Customers | 1 | 1 | 1 |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | One Customer [Member] |  |  |  |
Concentration Risk, Percentage | 46.00% | 46.00% | 59.00% |
Minimum [Member] |  |  |  |
Domain Services, Purchased Term (Year) | 1 year |  |  |
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] |  |  |  |
Domain Services, Purchased Term (Year) | 10 years |  |  |
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 |  |  |

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