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Note 10 - Revenue - Cost of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Cost of Goods and Services Sold, Total | $ 55,105 | $ 60,731 | [1] | $ 178,578 | $ 169,488 | [1]
Network, other costs | 2,315 | 2,461 | [1] | 7,590 | 7,064 | [1]
Cost of revenues | 59,258 | 64,514 | [1] | 191,363 | 180,015 | [1]
Network Expenses [Member] |  |  |  |  |  |
Network, other costs | 2,315 | 2,461 |  | 7,590 | 7,064 |
Network, depreciation and amortization costs | 1,838 | 1,322 |  | 5,195 | 3,463 |
Cost of revenues | 4,153 | 3,783 |  | 12,785 | 10,527 |
Network Access Services [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | 12,271 | 12,960 |  | 37,746 | 35,000 |
Network, other costs | 479 | 445 |  | 1,609 | 1,398 |
Cost of revenues | 13,787 | 13,994 |  | 42,151 | 37,927 |
Network Access Services [Member] | Mobile Services [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | 11,399 | 12,365 |  | 34,643 | 32,634 |
Network Access Services [Member] | Other Services [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | 872 | 595 |  | 3,103 | 2,366 |
Domain Name Services [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | 42,834 | 47,771 |  | 140,832 | 134,488 |
Network, other costs | 1,836 | 2,016 |  | 5,981 | 5,666 |
Cost of revenues | 45,471 | 50,520 |  | 149,212 | 142,088 |
Domain Name Services [Member] | Wholesale [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | 38,221 | 42,980 |  | 126,984 | 121,085 |
Domain Name Services [Member] | Retail Services [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | 4,465 | 4,611 |  | 13,320 | 12,776 |
Domain Name Services [Member] | Portfolio [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | 148 | 180 |  | 528 | 627 |
Domain Name Services [Member] | Domain Services [Member] | Wholesale [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | 37,414 | 42,293 |  | 124,572 | 119,207 |
Domain Name Services [Member] | Value Added Services [Member] | Wholesale [Member] |  |  |  |  |  |
Cost of Goods and Services Sold, Total | $ 807 | $ 687 |  | $ 2,412 | $ 1,878 |
[1] | The Company has initially applied ASC 2014-09 (Topic 606) using the modified retrospective method. Under this method, the comparative information is not restated.

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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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