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Note 10 - Revenue (Tables) | 9 Months Ended
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Sep. 30, 2018
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2018 |  |  | 2017* |  |  | 2018 |  |  | 2017* |
Network Access Services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mobile Services |  | $ | 22,546 |  |  | $ | 21,749 |  |  | $ | 66,829 |  |  | $ | 60,090 |
Other Services |  |  | 2,033 |  |  |  | 1,442 |  |  |  | 5,664 |  |  |  | 3,978 |
Total Network Access Services |  |  | 24,579 |  |  |  | 23,191 |  |  |  | 72,493 |  |  |  | 64,068 |
Domain Services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Wholesale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Domain Services |  |  | 45,070 |  |  |  | 47,770 |  |  |  | 146,038 |  |  |  | 135,413 |
Value Added Services |  |  | 4,541 |  |  |  | 4,203 |  |  |  | 13,576 |  |  |  | 13,526 |
Total Wholesale |  |  | 49,611 |  |  |  | 51,973 |  |  |  | 159,614 |  |  |  | 148,939 |
Retail |  |  | 8,731 |  |  |  | 8,873 |  |  |  | 25,644 |  |  |  | 22,937 |
Portfolio |  |  | 598 |  |  |  | 971 |  |  |  | 2,650 |  |  |  | 2,856 |
Total Domain Services |  |  | 58,940 |  |  |  | 61,817 |  |  |  | 187,908 |  |  |  | 174,732 |
|  | $ | 83,519 |  |  | $ | 85,008 |  |  | $ | 260,401 |  |  | $ | 238,800 |
Schedule of Cost of Revenues by Revenue Stream [Table Text Block] |
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2018 |  |  | 2017* |  |  | 2018 |  |  | 2017* |
Network Access Services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mobile Services |  | $ | 11,399 |  |  | $ | 12,365 |  |  | $ | 34,643 |  |  | $ | 32,634 |
Other Services |  |  | 872 |  |  |  | 595 |  |  |  | 3,103 |  |  |  | 2,366 |
Total Network Access Services |  |  | 12,271 |  |  |  | 12,960 |  |  |  | 37,746 |  |  |  | 35,000 |
Domain Services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Wholesale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Domain Services |  |  | 37,414 |  |  |  | 42,293 |  |  |  | 124,572 |  |  |  | 119,207 |
Value Added Services |  |  | 807 |  |  |  | 687 |  |  |  | 2,412 |  |  |  | 1,878 |
Total Wholesale |  |  | 38,221 |  |  |  | 42,980 |  |  |  | 126,984 |  |  |  | 121,085 |
Retail |  |  | 4,465 |  |  |  | 4,611 |  |  |  | 13,320 |  |  |  | 12,776 |
Portfolio |  |  | 148 |  |  |  | 180 |  |  |  | 528 |  |  |  | 627 |
Total Domain Services |  |  | 42,834 |  |  |  | 47,771 |  |  |  | 140,832 |  |  |  | 134,488 |
Network Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Network, other costs |  |  | 2,315 |  |  |  | 2,461 |  |  |  | 7,590 |  |  |  | 7,064 |
Network, depreciation and amortization costs |  |  | 1,838 |  |  |  | 1,322 |  |  |  | 5,195 |  |  |  | 3,463 |
|  |  | 4,153 |  |  |  | 3,783 |  |  |  | 12,785 |  |  |  | 10,527 |
|  | $ | 59,258 |  |  | $ | 64,514 |  |  | $ | 191,363 |  |  | $ | 180,015 |
Contract with Customer, Asset and Liability [Table Text Block] |
|  | Three months ended September 30, 2018 |  |  | Nine months ended September 30, 2018 |
Balance, beginning of period |  | $ | 152,052 |  |  | $ | 160,582 |
Deferred revenue |  |  | 54,181 |  |  |  | 170,904 |
Recognized revenue 1 |  |  | (57,741 | ) |  |  | (182,994 | )
Balance, end of period |  | $ | 148,492 |  |  | $ | 148,492 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] |
|  | September 30, 2018 |
Remainder of 2018 |  | $ | 48,701 |
2019 |  |  | 76,153 |
2020 |  |  | 10,331 |
2021 |  |  | 5,040 |
2022 |  |  | 3,244 |
Thereafter |  |  | 4,760 |
Total |  | $ | 148,229 |

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