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Note 10 - Revenue - Cost of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Network, other costs $ 7,064 $ 6,323
Network, depreciation of property and equipment 9,865 8,436
Network, amortization of intangible assets 365 378
Cost of Revenue Property and Equipment Impairment 53 1,942
Total cost of revenues 69,141 66,369
Cost of revenue 69,141 66,369
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]    
Cost of revenue 2,737 2,558
Network Expenses [Member]    
Network, other costs 7,064 6,323
Network, depreciation of property and equipment 9,865 8,436
Network, amortization of intangible assets 365 378
Cost of Revenue Property and Equipment Impairment 53 1,942
Total cost of revenues 17,347 17,079
Cost of revenue 17,347 17,079
Fiber Internet Services [Member]    
Cost of revenue 5,360 3,985
Mobile Services [Member]    
Cost of revenue 351 1,026
Mobile Services [Member] | Platform Services [Member]    
Cost of revenue 332 334
Mobile Services [Member] | Other Services [Member]    
Cost of revenue 19 692
Domain Name Services [Member]    
Cost of revenue 43,346 41,721
Domain Name Services [Member] | Wholesale [Member]    
Cost of revenue 39,210 37,608
Domain Name Services [Member] | Retail Services [Member]    
Cost of revenue 4,136 4,113
Domain Name Services [Member] | Domain Services [Member] | Wholesale [Member]    
Cost of revenue 38,663 37,002
Domain Name Services [Member] | Value Added Services [Member] | Wholesale [Member]    
Cost of revenue $ 547 $ 606