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Note 4 - Property and Equipment - Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, plant and equipment, gross	$ 226,741	$ 154,341
Accumulated depreciation	54,079	36,811
Property, plant and equipment, net	172,662	117,530
Computer Equipment [Member]
Property, plant and equipment, gross	34,465	25,029
Computer Software [Member]
Property, plant and equipment, gross	1,921	1,760
Capitalized Internal Use Software [Member]
Property, plant and equipment, gross	10,660	2,835
Furniture and Fixtures [Member]
Property, plant and equipment, gross	1,418	1,314
Vehicles and Tools [Member]
Property, plant and equipment, gross	6,569	4,476
Fiber Network [Member]
Property, plant and equipment, gross	109,500	66,766
Customer Equipment and Installations [Member]
Property, plant and equipment, gross	22,027	13,332
Land [Member]
Property, plant and equipment, gross	1,123	1,634
Building [Member]
Property, plant and equipment, gross	9,096	0
Asset under Construction [Member]
Property, plant and equipment, gross	29,414	36,720
Leasehold Improvements [Member]
Property, plant and equipment, gross	$ 548	$ 475

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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