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Note 19 - Subsequent Events (Details Textual) $ in Millions	Aug. 01, 2020 USD ($)
Subsequent Event [Member] | DISH [Member]
Revenue Commitment	$ 51.5

X

- Definition

Minimum amount of revenue commitment.

+ References

No definition available.

+ Details

Name:	tcx_RevenueCommitment
Namespace Prefix:	tcx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=tcx_DishMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: