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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Paragraph 42
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