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Note 10 - Revenue (Tables) | 12 Months Ended
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Dec. 31, 2019
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | 2019 |  |  | 2018* |  |  | 2017 |
Network Access Services: |  |  |  |  |  |  |  |  |  |  |  |
Mobile Services |  | $ | 84,657 |  |  | $ | 89,340 |  |  | $ | 83,885 |
Other Services |  |  | 11,006 |  |  |  | 7,984 |  |  |  | 5,567 |
Total Network Access Services |  |  | 95,663 |  |  |  | 97,324 |  |  |  | 89,452 |
Domain Services: |  |  |  |  |  |  |  |  |  |  |  |
Wholesale |  |  |  |  |  |  |  |  |  |  |  |
Domain Services |  |  | 182,957 |  |  |  | 189,434 |  |  |  | 183,731 |
Value Added Services |  |  | 18,922 |  |  |  | 17,756 |  |  |  | 17,832 |
Total Wholesale |  |  | 201,879 |  |  |  | 207,190 |  |  |  | 201,563 |
Retail |  |  | 34,786 |  |  |  | 34,524 |  |  |  | 31,649 |
Portfolio |  |  | 4,817 |  |  |  | 6,975 |  |  |  | 6,757 |
Total Domain Services |  |  | 241,482 |  |  |  | 248,689 |  |  |  | 239,969 |
|  | $ | 337,145 |  |  | $ | 346,013 |  |  | $ | 329,421 |
Schedule of Cost of Revenues by Revenue Stream [Table Text Block] |
|  | 2019 |  |  | 2018* |  |  | 2017 |
Network Access Services: |  |  |  |  |  |  |  |  |  |  |  |
Mobile Services |  | $ | 44,415 |  |  | $ | 46,061 |  |  | $ | 45,335 |
Other Services |  |  | 3,928 |  |  |  | 3,994 |  |  |  | 3,305 |
Total Network Access Services |  |  | 48,343 |  |  |  | 50,055 |  |  |  | 48,640 |
Domain Services: |  |  |  |  |  |  |  |  |  |  |  |
Wholesale |  |  |  |  |  |  |  |  |  |  |  |
Domain Services |  |  | 148,530 |  |  |  | 160,216 |  |  |  | 161,013 |
Value Added Services |  |  | 2,986 |  |  |  | 3,154 |  |  |  | 2,450 |
Total Wholesale |  |  | 151,516 |  |  |  | 163,370 |  |  |  | 163,463 |
Retail |  |  | 17,093 |  |  |  | 17,725 |  |  |  | 17,346 |
Portfolio |  |  | 627 |  |  |  | 953 |  |  |  | 1,151 |
Total Domain Services |  |  | 169,236 |  |  |  | 182,048 |  |  |  | 181,960 |
Network Expenses: |  |  |  |  |  |  |  |  |  |  |  |
Network, other costs |  |  | 9,190 |  |  |  | 9,846 |  |  |  | 9,324 |
Network, depreciation and amortization costs |  |  | 9,599 |  |  |  | 7,294 |  |  |  | 4,976 |
|  |  | 18,789 |  |  |  | 17,140 |  |  |  | 14,300 |
|  | $ | 236,368 |  |  | $ | 249,243 |  |  | $ | 244,900 |
Contract with Customer, Asset and Liability [Table Text Block] |
|  | Year ended December 31, 2019 |
Balance, beginning of period |  | $ | 143,694 |
Acquired in a business combination 1 |  |  | 12,510 |
Deferred revenue |  |  | 232,647 |
Recognized revenue |  |  | (239,548 | )
Balance, end of period |  | $ | 149,303 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] |
|  | Year ended December 31, 2019 |
2020 |  | $ | 121,921 |
2021 |  |  | 12,886 |
2022 |  |  | 5,456 |
2023 |  |  | 3,389 |
2024 |  |  | 2,090 |
Thereafter |  |  | 3,098 |
Total |  | $ | 148,840 |

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