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Note 6 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Goodwill, Ending Balance	$ 130,410		$ 130,410		$ 130,410
Goodwill, Impairment Loss	0	$ 0	$ 0	$ 0
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			2 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			15 years
Domain Services Operating Segment [Member]
Goodwill, Ending Balance	$ 107,700		$ 107,700
Goodwill Percentage Related to Operating Segments	83.00%		83.00%
Network Access Services [Member]
Goodwill, Ending Balance	$ 22,700		$ 22,700
Goodwill Percentage Related to Operating Segments	17.00%		17.00%
Mobile Platform Services [Member]
Goodwill Percentage Related to Operating Segments	0.00%		0.00%

X

- Definition

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

+ References

No definition available.

+ Details

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X

- Definition

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.

+ References

No definition available.

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X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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X

- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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