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Note 15 - Common Shares - Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of shares (in shares)	0	3,053	45,824
Aggregate market value of shares (in thousands)	$ 0	$ 197	$ 3,669
Average price per share (in dollars per share)	$ 0	$ 64.67	$ 80.07

X

- Definition

The aggregate market value of shares that received in connection with share-based compensation.

+ References

No definition available.

+ Details

Name:	tcx_SharesReceivedInConnectionWithShareBasedCompensationValue
Namespace Prefix:	tcx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Per share price of shares that received in connection with share-based compensation.

+ References

No definition available.

+ Details

Name:	tcx_SharesReceivedInConnectionWithSharebasedCompensationPricePerShare
Namespace Prefix:	tcx_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

+ References

No definition available.

+ Details

Name:	us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration