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Note 20 - Segment Reporting - Reconciliation of Income Before Provision for Income Taxes to Adjusted EBITDA (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Depreciation of property and equipment |  | $ (40,323) | $ (36,431) | $ (28,187)
Impairment and loss on disposition of property & equipment |  | (19,167) | (4,822) | (553)
Amortization expense |  | (5,297) | (10,829) | (11,394)
Interest expense, net |  | (51,275) | (41,771) | (14,456)
Accretion of contingent liability |  | 0 | 0 | (248)
Stock-based compensation |  | (7,021) | (8,134) | (7,599)
Unrealized loss (gain) on foreign exchange revaluation of foreign denominated monetary assets and liabilities |  | 167 | 62 | (281)
Acquisition and other costs(2) | [1] | (13,875) | (1,916) | (2,660)
Net loss before tax |  | (101,874) | (103,070) | (27,788)
Ting [Member] |  |  |  |
Loss on debt extinguishment |  | 0 |  |
Wavelo [Member] |  |  |  |
Loss on debt extinguishment |  |  | (14,680) |
Tucows Domains [Member] |  |  |  |
Loss on debt extinguishment |  |  |  | 0
Operating Segments [Member] |  |  |  |
Adjusted EBITDA |  | 35,679 | 9,045 | 27,152
Operating Segments [Member] | Ting [Member] |  |  |  |
Adjusted EBITDA |  | (22,517) | (44,151) | (21,557)
Operating Segments [Member] | Wavelo [Member] |  |  |  |
Adjusted EBITDA |  | 13,806 | 10,573 | 3,875
Operating Segments [Member] | Tucows Domains [Member] |  |  |  |
Adjusted EBITDA |  | 44,390 | 42,623 | 44,834
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |
Adjusted EBITDA | [2] | $ (762) | $ 6,406 | $ 10,438
[1] | Acquisition and other costs represent transaction-related expenses and transitional expenses. Expenses include severance or transitional costs associated with department, operational or overall company restructuring efforts, including geographic alignments.
[2] | Items that are centrally managed and not monitored by or reported to our CEO by segment, including retail mobile services, eliminations of intercompany transactions, portions of Finance and Human Resources that are centrally managed, Legal and Corporate IT.

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