Note 5 - Goodwill and Other Intangible Assets - Acquired Intangible Assets by Major Class (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Balances	$ 34,692		$ 39,790
Acquisition of customer relationships	32		415
Additions to/(disposals from) domain portfolio, net	(3)		(3)
Amortization expense	(2,620)	$ (2,842)	(8,101)	$ (8,528)
Balances	32,101		32,101
Brand [Member]
Balances	1,904		2,940
Acquisition of customer relationships	0		0
Additions to/(disposals from) domain portfolio, net	0		0
Amortization expense	(518)		(1,554)
Balances	1,386		1,386
Customer Relationships [Member]
Balances	17,111		20,813
Acquisition of customer relationships	32		415
Additions to/(disposals from) domain portfolio, net	0		0
Amortization expense	(1,922)		(6,007)
Balances	15,221		15,221
Technology-Based Intangible Assets [Member]
Balances	2,460		2,770
Acquisition of customer relationships	0		0
Additions to/(disposals from) domain portfolio, net	0		0
Amortization expense	(155)		(465)
Balances	2,305		2,305
Network Rights [Member]
Balances	933		983
Acquisition of customer relationships	0		0
Additions to/(disposals from) domain portfolio, net	0		0
Amortization expense	(25)		(75)
Balances	908		908
Surname Domain Names [Member]
Balances	11,155		11,155
Acquisition of customer relationships	0		0
Additions to/(disposals from) domain portfolio, net	(2)		(2)
Balances	11,153		11,153
Direct Navigation Domain Names [Member]
Balances	1,129		1,129
Acquisition of customer relationships	0		0
Additions to/(disposals from) domain portfolio, net	(1)		(1)
Balances	$ 1,128		$ 1,128

Amount of addition or disposal in intangible assets.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482665/350-30-50-1

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
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