Note 4 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Goodwill	$ 130,410	$ 130,410
Goodwill, Impairment Loss	0	0
Finite-Lived Intangible Assets Acquired	$ 575	$ 528
Customer Assets and Domain Names [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	7 years
Finite-Lived Intangible Assets Acquired	$ 600
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	2 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	15 years
Weighted Average [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	5 years 4 months 24 days
Domain Services Operating Segment [Member]
Goodwill	$ 107,700
Goodwill Percentage Related to Operating Segments	83.00%
Network Access Services [Member]
Goodwill	$ 22,700
Goodwill Percentage Related to Operating Segments	17.00%

Represents the percentage of goodwill in relation to the company's operating segments.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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