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Note 16 - Contingencies (Details Textual) xbrli-pure in Thousands	Jan. 05, 2018
Litigation Case with Namecheap [Member]
Domain Name Transfer to Counter Party	2,650

X

- Definition

The amount of domain names transfered to a counter party.

+ References

No definition available.

+ Details

Name:	tcx_DomainNameTransferToCounterParty
Namespace Prefix:	tcx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	srt_LitigationCaseAxis=tcx_LitigationCaseWithNamecheapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: