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Note 5 - Goodwill and Other Intangible Assets - Acquired Intangible Assets by Major Class (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Balances | $ 50,409 | $ 47,444 |
Additions to/(disposals from) domain portfolio, net | (7) | (1) | $ (17)
Amortization expense | (11,394) | (10,007) | (11,420)
Balances | 39,790 | 50,409 | 47,444
Simply Bits [Member] |  |  |
Acquisition |  | 9,160 |
Acquisition |  | 9,160 |
Uniregistry [Member] |  |  |
Acquisition |  | 3,039 |
Acquisition |  | 3,039 |
Customer Relationship [Member] |  |  |
Acquisition | 782 | 224 |
Acquisition | 782 | 224 |
Brand [Member] |  |  |
Acquisition |  | 59 |
Acquisition |  | 59 |
Technology [Member] |  |  |
Acquisition |  | 491 |
Acquisition |  | 491 |
Brand [Member] |  |  |
Balances | 5,010 | 7,021 |
Additions to/(disposals from) domain portfolio, net | 0 | 0 |
Amortization expense | (2,070) | (2,070) |
Balances | 2,940 | 5,010 | 7,021
Customer Relationships [Member] |  |  |
Balances | 28,634 | 26,664 |
Additions to/(disposals from) domain portfolio, net | 0 | 0 |
Amortization expense | (8,603) | (7,414) |
Balances | 20,813 | 28,634 | 26,664
Technology-Based Intangible Assets [Member] |  |  |
Balances | 3,392 | 274 |
Additions to/(disposals from) domain portfolio, net | 0 | 0 |
Amortization expense | (622) | (412) |
Balances | 2,770 | 3,392 | 274
Technology-Based Intangible Assets [Member] | Uniregistry [Member] |  |  |
Acquisition |  | 3,039 |
Acquisition |  | 3,039 |
Network Rights [Member] |  |  |
Balances | 1,082 | 1,193 |
Additions to/(disposals from) domain portfolio, net | 0 | 0 |
Amortization expense | (99) | (111) |
Balances | 983 | 1,082 | 1,193
Surname Domain Names [Member] |  |  |
Balances | 11,156 | 11,157 |
Additions to/(disposals from) domain portfolio, net | (1) | (1) |
Amortization expense | 0 | 0 |
Balances | 11,155 | 11,156 | 11,157
Surname Domain Names [Member] | Simply Bits [Member] |  |  |
Acquisition |  | 9,160 |
Acquisition |  | 9,160 |
Surname Domain Names [Member] | Customer Relationship [Member] |  |  |
Acquisition |  | 224 |
Acquisition |  | 224 |
Surname Domain Names [Member] | Brand [Member] |  |  |
Acquisition |  | 59 |
Acquisition |  | 59 |
Surname Domain Names [Member] | Technology [Member] |  |  |
Acquisition |  | 491 |
Acquisition |  | 491 |
Direct Navigation Domain Names [Member] |  |  |
Balances | 1,135 | 1,135 |
Additions to/(disposals from) domain portfolio, net | (6) | 0 |
Amortization expense | 0 | 0 |
Balances | $ 1,129 | $ 1,135 | $ 1,135

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- Definition Aggregate amount of indefinite life intangible assets recognized as cost of revenues, as a result of the disposal of these domain names, during the period. + References No definition available. + Details
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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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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 + Details
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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 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-1 + Details
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