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Note 22 - Subsequent Events (Details Textual) - USD ($) $ in Millions	Feb. 23, 2024	Feb. 22, 2024	Feb. 09, 2024	Feb. 10, 2023	Feb. 09, 2023
Stock Buyback Program 2024 [Member] | Subsequent Event [Member]
Stock Repurchase Program, Authorized Amount	$ 40	$ 40
Stock Buyback Program 2023 [Member]
Stock Repurchase Program, Authorized Amount				$ 40	$ 40
Stock Buyback Program 2023 [Member] | Subsequent Event [Member]
Stock Repurchase Program, Authorized Amount			$ 40

X

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_ShareRepurchaseProgramAxis=tcx_StockBuybackProgram2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_ShareRepurchaseProgramAxis=tcx_StockBuybackProgram2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: