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Note 4 - Property and Equipment - Property and Equipment (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Property, plant and equipment, gross | $ 456,316 | $ 359,553
Accumulated depreciation | 116,672 | 78,058
Property, plant and equipment, net | 339,644 | 281,495
Computer Equipment [Member] |  |
Property, plant and equipment, gross | 53,818 | 43,440
Computer Software [Member] |  |
Property, plant and equipment, gross | 1,926 | 1,935
Capitalized Internal Use Software [Member] |  |
Property, plant and equipment, gross | 38,379 | 25,172
Furniture and Fixtures [Member] |  |
Property, plant and equipment, gross | 1,880 | 1,708
Vehicles and Tools [Member] |  |
Property, plant and equipment, gross | 10,594 | 9,144
Fiber Network [Member] |  |
Property, plant and equipment, gross | 215,205 | 168,587
Customer Equipment and Installations [Member] |  |
Property, plant and equipment, gross | 48,041 | 36,382
Land [Member] |  |
Property, plant and equipment, gross | 1,109 | 1,109
Building [Member] |  |
Property, plant and equipment, gross | 9,118 | 8,864
Asset under Construction [Member] |  |
Property, plant and equipment, gross | 75,519 | 62,588
Leasehold Improvements [Member] |  |
Property, plant and equipment, gross | $ 727 | $ 624

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