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Note 10 - Revenue - Cost of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Network, other costs | $ 2,416 | $ 2,395
Cost of revenue | 58,835 | 56,302
Network Expenses [Member] |  |
Network, other costs | 2,416 | 2,395
Network, depreciation and amortization costs | 3,231 | 1,975
Cost of revenue | 5,647 | 4,370
Network Access Services [Member] |  |
Cost of revenue | 11,573 | 11,812
Network, other costs | 538 | 521
Cost of revenue | 14,552 | 13,798
Network Access Services [Member] | Mobile Services [Member] |  |
Cost of revenue | 9,857 | 10,743
Network Access Services [Member] | Other Services [Member] |  |
Cost of revenue | 1,716 | 1,069
Domain Name Services [Member] |  |
Cost of revenue | 41,615 | 40,120
Network, other costs | 1,878 | 1,874
Cost of revenue | 44,283 | 42,504
Domain Name Services [Member] | Wholesale [Member] |  |
Cost of revenue | 37,254 | 35,633
Domain Name Services [Member] | Retail Services [Member] |  |
Cost of revenue | 4,234 | 4,359
Domain Name Services [Member] | Portfolio [Member] |  |
Cost of revenue | 127 | 128
Domain Name Services [Member] | Domain Services [Member] | Wholesale [Member] |  |
Cost of revenue | 36,469 | 34,839
Domain Name Services [Member] | Value Added Services [Member] | Wholesale [Member] |  |
Cost of revenue | $ 785 | $ 794

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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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 Reference 2: 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=120395209&loc=SL114868664-224227 + Details
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