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Note 14 - Segment Reporting - Information by Reportable Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Revenue from external customers |  | $ 98,558 | $ 92,297 | $ 291,630 | $ 269,177
Cost of revenues (2) |  | 57,830 | 52,613 | 172,060 | 155,735
Network, other costs (2) |  | 5,855 | 7,716 | 17,488 | 21,695
Sales and marketing |  | 11,882 | 15,180 | 34,818 | 48,491
Technical operations and development |  | 4,682 | 4,615 | 13,433 | 14,153
General and administrative |  | 9,650 | 11,485 | 28,552 | 30,491
Operating Segments [Member] |  |  |  |  |
Revenue from external customers |  | 96,221 | 90,035 | 284,985 | 262,703
Intersegment revenues (1) | [1] | 448 | 72 | 1,320 | 218
Total net revenues |  | 96,669 | 90,107 | 286,305 | 262,921
Cost of revenues (2) |  | 52,324 | 47,607 | 155,999 | 141,408
Network, other costs (2) | [2] | 6,374 | 8,453 | 19,314 | 25,707
Sales and marketing |  | 11,374 | 14,356 | 33,297 | 46,500
Technical operations and development |  | 4,584 | 4,315 | 13,143 | 12,874
General and administrative |  | 6,976 | 6,904 | 21,863 | 20,740
Other segment items (3) | [3] | (463) | (1,416) | (2,198) | (6,143)
Segment Adjusted EBITDA |  | 15,500 | 9,888 | 44,887 | 21,835
Operating Segments [Member] | Ting [Member] |  |  |  |  |
Revenue from external customers |  | 16,976 | 15,310 | 49,701 | 43,983
Intersegment revenues (1) | [1] | 0 | 0 | 0 | 0
Total net revenues |  | 16,976 | 15,310 | 49,701 | 43,983
Cost of revenues (2) |  | 5,613 | 2,639 | 17,972 | 8,905
Network, other costs (2) | [2] | 2,297 | 4,053 | 6,946 | 12,677
Sales and marketing |  | 5,030 | 8,590 | 14,424 | 30,442
Technical operations and development |  | 510 | 922 | 1,483 | 2,594
General and administrative |  | 4,510 | 4,401 | 14,460 | 13,563
Other segment items (3) | [3] | (102) | (225) | (197) | (3,149)
Segment Adjusted EBITDA |  | (882) | (5,070) | (5,387) | (21,049)
Operating Segments [Member] | Wavelo [Member] |  |  |  |  |
Revenue from external customers |  | 11,408 | 10,010 | 34,588 | 29,755
Intersegment revenues (1) | [1] | 448 | 72 | 1,320 | 218
Total net revenues |  | 11,856 | 10,082 | 35,908 | 29,973
Cost of revenues (2) |  | 88 | 63 | 320 | 753
Network, other costs (2) | [2] | 2,258 | 2,690 | 6,890 | 7,719
Sales and marketing |  | 2,475 | 2,278 | 7,612 | 5,830
Technical operations and development |  | 2,181 | 1,675 | 5,706 | 4,967
General and administrative |  | 1,177 | 963 | 3,107 | 2,754
Other segment items (3) | [3] | (608) | (1,016) | (1,821) | (2,177)
Segment Adjusted EBITDA |  | 4,285 | 3,429 | 14,094 | 10,127
Operating Segments [Member] | Tucows Domains [Member] |  |  |  |  |
Revenue from external customers |  | 67,837 | 64,715 | 200,696 | 188,965
Intersegment revenues (1) | [1] | 0 | 0 | 0 | 0
Total net revenues |  | 67,837 | 64,715 | 200,696 | 188,965
Cost of revenues (2) |  | 46,623 | 44,905 | 137,707 | 131,750
Network, other costs (2) | [2] | 1,819 | 1,710 | 5,478 | 5,311
Sales and marketing |  | 3,869 | 3,488 | 11,261 | 10,228
Technical operations and development |  | 1,893 | 1,718 | 5,954 | 5,313
General and administrative |  | 1,289 | 1,540 | 4,296 | 4,423
Other segment items (3) | [3] | 247 | (175) | (180) | (817)
Segment Adjusted EBITDA |  | $ 12,097 | $ 11,529 | $ 36,180 | $ 32,757
[1] | Intercompany revenues earned for provision of services on the ISOS and SM platforms between Wavelo and Ting are included in Wavelo's segment revenues for purposes of segment analysis, but are ultimately eliminated upon consolidation.
[2] | Network Costs in segment reports provided to the CODM include certain construction expenses for Ting, which are reported as Direct Costs of Revenue in the Consolidated Statements of Operations and Comprehensive Loss.
[3] | Other segment items for each reportable segment includes other income, as well as adjustments to add back (deduct): gains and losses from unrealized foreign currency, stock-based compensation expense and acquisition and transition costs, which are included in other line items but are excluded from our definition of Segment Adjusted EBITDA.

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Name: | us-gaap_StatementBusinessSegmentsAxis=tcx_TucowsDomainsMember
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Data Type: | na
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Period Type: |