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Note 10 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | [1] | Dec. 31, 2017
Net Revenues | $ 85,946 | $ 88,129 | $ 84,117 | $ 78,953 | $ 85,612 | $ 83,519 | $ 81,087 | $ 95,795 | $ 337,145 | $ 346,013 | [2] | $ 329,421
Network Access Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 95,663 | 97,324 |  | 89,452
Domain Name Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 241,482 | 248,689 |  | 239,969
Domain Name Services [Member] | Wholesale [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 201,879 | 207,190 |  | 201,563
Domain Name Services [Member] | Retail Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 34,786 | 34,524 |  | 31,649
Domain Name Services [Member] | Portfolio [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 4,817 | 6,975 |  | 6,757
Mobile Services [Member] | Network Access Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 84,657 | 89,340 |  | 83,885
Other Services [Member] | Network Access Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 11,006 | 7,984 |  | 5,567
Domain Services [Member] | Domain Name Services [Member] | Wholesale [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | 182,957 | 189,434 |  | 183,731
Value Added Services [Member] | Domain Name Services [Member] | Wholesale [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net Revenues |  |  |  |  |  |  |  |  | $ 18,922 | $ 17,756 |  | $ 17,832
[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 using the modified retrospective method (note 2(v)). Under this method, the comparative information is not restated.

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