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Note 6 - Goodwill and Other Intangible Assets - Acquired Intangible Assets by Major Class (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Balances | $ 21,887 |  | $ 24,755 |
Adjustment to acquisition of customer relationships | (7) |  |  |
Disposals from domain portfolio, net | (2) |  | (9) |
Finalization of amounts relating to disposal of Cedar intangible assets | 172 |  | 242 |
Amortization expense | (1,072) | $ (1,209) | (3,393) | $ (4,089)
Balances | 20,978 |  | 20,978 |
Acquisition of customer relationships |  |  | 206 |
Write-down of Cedar intangible assets | (172) |  | (242) |
Disposal of Cedar intangible assets |  |  | (339) |
Brand [Member] |  |  |  |
Balances | 334 |  | 424 |
Disposals from domain portfolio, net | 0 |  | 0 |
Finalization of amounts relating to disposal of Cedar intangible assets | 0 |  | (0) |
Amortization expense | (15) |  | (105) |
Balances | 319 |  | 319 |
Acquisition of customer relationships |  |  | 0 |
Write-down of Cedar intangible assets | 0 |  | 0 |
Disposal of Cedar intangible assets |  |  | 0 |
Customer Relationships [Member] |  |  |  |
Balances | 7,367 |  | 9,748 |
Adjustment to acquisition of customer relationships | (7) |  |  |
Disposals from domain portfolio, net | 0 |  | 0 |
Finalization of amounts relating to disposal of Cedar intangible assets | 172 |  | 213 |
Amortization expense | (878) |  | (2,748) |
Balances | 6,654 |  | 6,654 |
Acquisition of customer relationships |  |  | 206 |
Write-down of Cedar intangible assets | (172) |  | (213) |
Disposal of Cedar intangible assets |  |  | (339) |
Technology-Based Intangible Assets [Member] |  |  |  |
Balances | 1,215 |  | 1,526 |
Disposals from domain portfolio, net | 0 |  | 0 |
Finalization of amounts relating to disposal of Cedar intangible assets | 0 |  | (0) |
Amortization expense | (155) |  | (466) |
Balances | 1,060 |  | 1,060 |
Acquisition of customer relationships |  |  | 0 |
Write-down of Cedar intangible assets | 0 |  | 0 |
Disposal of Cedar intangible assets |  |  | 0 |
Network Rights [Member] |  |  |  |
Balances | 706 |  | 785 |
Disposals from domain portfolio, net | 0 |  | 0 |
Finalization of amounts relating to disposal of Cedar intangible assets | 0 |  | 29 |
Amortization expense | (24) |  | (74) |
Balances | 682 |  | 682 |
Acquisition of customer relationships |  |  | 0 |
Write-down of Cedar intangible assets | 0 |  | (29) |
Disposal of Cedar intangible assets |  |  | 0 |
Surname Domain Names [Member] |  |  |  |
Balances | 11,140 |  | 11,145 |
Disposals from domain portfolio, net | (1) |  | (6) |
Finalization of amounts relating to disposal of Cedar intangible assets | 0 |  | (0) |
Amortization expense | 0 |  | 0 |
Balances | 11,139 |  | 11,139 |
Acquisition of customer relationships |  |  | 0 |
Write-down of Cedar intangible assets | 0 |  | 0 |
Disposal of Cedar intangible assets |  |  | 0 |
Direct Navigation Domain Names [Member] |  |  |  |
Balances | 1,125 |  | 1,127 |
Disposals from domain portfolio, net | (1) |  | (3) |
Finalization of amounts relating to disposal of Cedar intangible assets | 0 |  | (0) |
Amortization expense | 0 |  | 0 |
Balances | 1,124 |  | 1,124 |
Acquisition of customer relationships |  |  | 0 |
Write-down of Cedar intangible assets | $ 0 |  | 0 |
Disposal of Cedar intangible assets |  |  | $ 0 |

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