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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, 2019 | Sep. 30, 2018 | [2] | Sep. 30, 2019 | Sep. 30, 2018 | [2]
Balances |  | $ 59,451 |  | $ 49,395 | [1] |
Finite-lived intangible assets acquired |  | 64 |  | 91 |  |
Additions to/(disposals from) domain portfolio, net |  | (66) | $ (5) | (72) |  | $ (70)
Amortization expense |  | (2,858) | $ (2,296) | (7,463) |  | $ (6,953)
Balances |  | 60,066 |  | 60,066 |  |
Ascio Technologies, Inc. [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  | 14,640 |  |
FreedomPop and Unreal Mobile [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired | [3] | 3,475 |  | 3,475 |  |
Brand [Member] |  |  |  |  |  |
Balances |  | 10,060 |  | 9,004 |  |
Finite-lived intangible assets acquired |  |  |  |  |  |
Additions to/(disposals from) domain portfolio, net |  |  |  |  |  |
Amortization expense |  | (514) |  | (1,478) |  |
Balances |  | 9,546 |  | 9,546 |  |
Brand [Member] | Ascio Technologies, Inc. [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  | 2,020 |  |
Brand [Member] | FreedomPop and Unreal Mobile [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired | [3] |  |  |  |  |
Customer Relationships [Member] |  |  |  |  |  |
Balances |  | 34,375 |  | 27,292 |  |
Finite-lived intangible assets acquired |  | 64 |  | 91 |  |
Additions to/(disposals from) domain portfolio, net |  |  |  |  |  |
Amortization expense |  | (2,030) |  | (5,174) |  |
Balances |  | 35,884 |  | 35,884 |  |
Customer Relationships [Member] | Ascio Technologies, Inc. [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  | 10,200 |  |
Customer Relationships [Member] | FreedomPop and Unreal Mobile [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired | [3] | 3,475 |  | 3,475 |  |
Technology-Based Intangible Assets [Member] |  |  |  |  |  |
Balances |  | 2,110 |  | 163 |  |
Finite-lived intangible assets acquired |  |  |  |  |  |
Additions to/(disposals from) domain portfolio, net |  |  |  |  |  |
Amortization expense |  | (302) |  | (775) |  |
Balances |  | 1,808 |  | 1,808 |  |
Technology-Based Intangible Assets [Member] | Ascio Technologies, Inc. [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  | 2,420 |  |
Technology-Based Intangible Assets [Member] | FreedomPop and Unreal Mobile [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired | [3] |  |  |  |  |
Network Rights [Member] |  |  |  |  |  |
Balances |  | 491 |  | 515 |  |
Finite-lived intangible assets acquired |  |  |  |  |  |
Additions to/(disposals from) domain portfolio, net |  |  |  |  |  |
Amortization expense |  | (12) |  | (36) |  |
Balances |  | 479 |  | 479 |  |
Network Rights [Member] | Ascio Technologies, Inc. [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  |  |  |
Network Rights [Member] | FreedomPop and Unreal Mobile [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired | [3] |  |  |  |  |
Surname Domain Names [Member] |  |  |  |  |  |
Balances |  | 11,173 |  | 11,176 |  |
Additions to/(disposals from) domain portfolio, net |  | (6) |  | (9) |  |
Amortization expense |  |  |  |  |  |
Balances |  | 11,167 |  | 11,167 |  |
Surname Domain Names [Member] | Ascio Technologies, Inc. [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  |  |  |
Surname Domain Names [Member] | FreedomPop and Unreal Mobile [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired | [3] |  |  |  |  |
Direct Navigation Domain Names [Member] |  |  |  |  |  |
Balances |  | 1,242 |  | 1,245 |  |
Additions to/(disposals from) domain portfolio, net |  | (60) |  | (63) |  |
Amortization expense |  |  |  |  |  |
Balances |  | 1,182 |  | 1,182 |  |
Direct Navigation Domain Names [Member] | Ascio Technologies, Inc. [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  |  |  |
Direct Navigation Domain Names [Member] | FreedomPop and Unreal Mobile [Member] |  |  |  |  |  |
Finite-lived intangible assets acquired | [3] |  |  |  |  |
[1] | The Company has initially applied ASC 2016-02 (Topic 842) using the modified retrospective method. Under this method, the comparative information is not restated.
[2] | The Company has initially applied ASC 2016-02 (Topic 842) using the modified retrospective method. Under this method, the comparative information is not restated.
[3] | In the third quarter of 2019, the Company acquired the mobile customer base of FreedomPop and Unreal Mobile brands from STS Media Inc., operating on the Sprint network. The migration of these customers occurred over a 60-day period, ending in September 2019 with subscribers having the option to accept the Ting offering or cancel or port their service elsewhere. The final purchase price was $3.5 million.

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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