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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, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Balances | $ 52,732 |  | $ 57,654 |
Amortization expense | (2,645) | $ (2,858) | (8,776) | $ (7,463)
Balances | 50,087 |  | 50,087 |
Cedar Networks acquisition (Note 4 (b)) |  |  | 5,390 |
Additions to/(disposals from) domain portfolio, net | 0 | (66) | (15) | (72)
Impairment of definite life intangible asset | 0 | $ 0 | (1,431) | $ 0
Other |  |  | (223) |
Write-down of Ting Mobile customer relationships |  |  | (2,581) |
Acquisition of Network rights |  |  | 69 |
Brand [Member] |  |  |  |
Balances | 8,056 |  | 9,091 |
Amortization expense | (518) |  | (1,553) |
Balances | 7,538 |  | 7,538 |
Cedar Networks acquisition (Note 4 (b)) |  |  | 0 |
Additions to/(disposals from) domain portfolio, net |  |  | 0 |
Impairment of definite life intangible asset |  |  | 0 |
Other |  |  | 0 |
Write-down of Ting Mobile customer relationships |  |  | 0 |
Acquisition of Network rights |  |  | 0 |
Customer Relationships [Member] |  |  |  |
Balances | 30,257 |  | 34,268 |
Amortization expense | (1,797) |  | (6,213) |
Balances | 28,460 |  | 28,460 |
Cedar Networks acquisition (Note 4 (b)) |  |  | 4,640 |
Additions to/(disposals from) domain portfolio, net |  |  | 0 |
Impairment of definite life intangible asset |  |  | (1,431) |
Other |  |  | (223) |
Write-down of Ting Mobile customer relationships |  |  | (2,581) |
Acquisition of Network rights |  |  | 0 |
Technology-Based Intangible Assets [Member] |  |  |  |
Balances | 884 |  | 1,516 |
Amortization expense | (305) |  | (937) |
Balances | 579 |  | 579 |
Cedar Networks acquisition (Note 4 (b)) |  |  | 0 |
Additions to/(disposals from) domain portfolio, net |  |  | 0 |
Impairment of definite life intangible asset |  |  | 0 |
Other |  |  | 0 |
Write-down of Ting Mobile customer relationships |  |  | 0 |
Acquisition of Network rights |  |  | 0 |
Network Rights [Member] |  |  |  |
Balances | 1,240 |  | 469 |
Amortization expense | (25) |  | (73) |
Balances | 1,215 |  | 1,215 |
Cedar Networks acquisition (Note 4 (b)) |  |  | 750 |
Additions to/(disposals from) domain portfolio, net |  |  | 0 |
Impairment of definite life intangible asset |  |  | 0 |
Other |  |  | 0 |
Write-down of Ting Mobile customer relationships |  |  | 0 |
Acquisition of Network rights |  |  | 69 |
Surname Domain Names [Member] |  |  |  |
Balances | 11,160 |  | 11,166 |
Amortization expense | 0 |  | 0 |
Balances | 11,160 |  | 11,160 |
Cedar Networks acquisition (Note 4 (b)) |  |  | 0 |
Additions to/(disposals from) domain portfolio, net |  |  | (6) |
Impairment of definite life intangible asset |  |  | 0 |
Other |  |  | 0 |
Write-down of Ting Mobile customer relationships |  |  | 0 |
Acquisition of Network rights |  |  | 0 |
Direct Navigation Domain Names [Member] |  |  |  |
Balances | 1,135 |  | 1,144 |
Amortization expense | 0 |  | 0 |
Balances | $ 1,135 |  | 1,135 |
Cedar Networks acquisition (Note 4 (b)) |  |  | 0 |
Additions to/(disposals from) domain portfolio, net |  |  | (9) |
Impairment of definite life intangible asset |  |  | 0 |
Other |  |  | 0 |
Write-down of Ting Mobile customer relationships |  |  | 0 |
Acquisition of Network rights |  |  | $ 0 |

X
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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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