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Note 11 - Costs to Obtain and Fulfill a Contract - Capitalized Contract Costs Activity (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Capitalization of costs | $ 1,500 |  |
Amortization of costs | 748 | $ 717 | $ (106)
Deferred Costs of Acquisition [Member] |  |  |
Balance | 1,079 |  |
Capitalization of costs | 1,494 |  |
Amortization of costs | (746) |  |
Balance | 1,827 | 1,079 |
Domain Registration Costs [Member] |  |  |
Balance | 112,711 |  |
Capitalization of costs | 169,500 |  |
Amortization of costs | (171,500) |  |
Balance | 110,674 | $ 112,711 |
Deferral of costs | 169,457 |  |
Recognized costs | $ (171,494) |  |

X
- Definition Amount of decrease in capitalized contract cost from recognized revenue. + References No definition available. + Details
Name: | tcx_CapitalizedContractCostDecreaseRecognizedRevenue
Namespace Prefix: | tcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase in capitalized contract cost from deferred revenue. + References No definition available. + Details
Name: | tcx_CapitalizedContractCostIncreaseFromDeferredRevenue
Namespace Prefix: | tcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase (decrease) in capitalization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References No definition available. + Details
Name: | tcx_IncreaseDecreaseInCapitalizedCosts
Namespace Prefix: | tcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479483/340-40-50-3 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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X
- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479483/340-40-50-3 + Details
Name: | us-gaap_CapitalizedContractCostNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_CapitalizedContractCostAxis=tcx_DeferredCostsOfAcquisitionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CapitalizedContractCostAxis=tcx_DomainRegistrationCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |