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Note 10 - Revenue - Cost of Revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Network, other costs $ 17,433 $ 14,769 $ 10,194
Network, impairment 92 201 1,638
Cost of revenue 242,894 226,044 225,717
Corporate, Non-Segment [Member]      
Cost of revenue 9,448 12,208 25,911
Network Expenses [Member]      
Network, other costs 17,433 14,769 10,194
Network, depreciation and amortization costs 29,101 18,035 13,484
Network, impairment 92 201 1,638
Cost of revenue 46,626 33,005 25,316
Ting [Member] | Fiber Internet Services [Member]      
Cost of revenue 17,004 12,035 6,856
Wavelo [Member]      
Cost of revenue 2,926 1,308 183
Wavelo [Member] | Platform Services [Member]      
Cost of revenue 1,294 504 183
Wavelo [Member] | Other Services [Member]      
Cost of revenue 1,632 804 0
Tucows Domains [Member]      
Cost of revenue 166,890 167,488 167,451
Tucows Domains [Member] | Wholesale [Member]      
Cost of revenue 150,408 149,757 149,804
Tucows Domains [Member] | Retail Services [Member]      
Cost of revenue 16,482 17,731 17,647
Tucows Domains [Member] | Domain Services [Member] | Wholesale [Member]      
Cost of revenue 147,894 147,213 146,788
Tucows Domains [Member] | Value Added Services [Member] | Wholesale [Member]      
Cost of revenue $ 2,514 $ 2,544 $ 3,016