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Note 10 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | [1]
Net Revenues | $ 70,784 | $ 74,311 | $ 82,122 | $ 83,985 | $ 85,946 | $ 88,129 | $ 84,117 | $ 78,953 | $ 311,202 | $ 337,145 | $ 346,013 | [2]
Network Access Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 68,948 | 95,663 | 97,324 |
Network Access Services [Member] | Fiber Internet Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 18,428 | 11,006 | 7,984 |
Network Access Services [Member] | Mobile Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 50,520 | 84,657 | 89,340 |
Network Access Services [Member] | Mobile Services [Member] | Retail Mobile Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 46,540 | 84,657 | 89,340 |
Network Access Services [Member] | Mobile Services [Member] | Mobile Platform Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 564 | 0 | 0 |
Network Access Services [Member] | Mobile Services [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 3,416 | 0 | 0 |
Domain Name Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 242,254 | 241,482 | 248,689 |
Domain Name Services [Member] | Wholesale [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 206,681 | 201,879 | 207,190 |
Domain Name Services [Member] | Wholesale [Member] | Domain Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 186,893 | 182,957 | 189,434 |
Domain Name Services [Member] | Wholesale [Member] | Value Added Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 19,788 | 18,922 | 17,756 |
Domain Name Services [Member] | Retail Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 34,323 | 34,786 | 34,524 |
Domain Name Services [Member] | Portfolio [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | $ 1,250 | $ 4,817 | $ 6,975 |
[1] | As a result of the bulk transfers of 2.89 million domain names to Namecheap throughout 2018, recognized revenue for the year ended December 31, 2018 includes $16.9 million, related to previously deferred revenue, a portion of which would have otherwise been recognized after December 31, 2018.
[2] | The Company has initially applied ASC 2016-02 (Topic 842) on January 1, 2019 (note 2 (u)). The accounting standard was adopted using the modified retrospective method, under this method the comparative period was not restated.

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