Period of extension.

No definition available.

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Namespace Prefix:	tcx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Required amount of principal payment under debt instrument.

+ References

No definition available.

+ Details

Name:	tcx_DebtInstrumentRequiredPrincipalPayment
Namespace Prefix:	tcx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Additional borrowing capacity available through new commitment under line of credit facility.

+ References

No definition available.

+ Details

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

- Definition

Benchmark of Total funded debt to adjusted EBITDA to increase borrowing capacity under line of credit facility.

+ References

No definition available.

+ Details

Name:	tcx_LineOfCreditFacilityIncreasingCapacityTotalFundedDebtToAdjustedEbitdaRatioBenchmark
Namespace Prefix:	tcx_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio of total funded debt to EDITDA that triggers obligation to repay 50% of excess cash flow as defined under the credit agreement.

+ References

No definition available.

+ Details

Name:	tcx_MaximumTotalFundedDebtToEBITDARatio
Namespace Prefix:	tcx_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

The minimum fixed charge coverage ratio.

+ References

No definition available.

+ Details

Name:	tcx_MinimumFixedChargeCoverageRatio
Namespace Prefix:	tcx_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

+ Details

Name:	us-gaap_DebtInstrumentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Subparagraph (k)
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 10
-Topic 220
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

+ Details

Name:	us-gaap_LegalFees
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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

- Definition

Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=tcx_BankOfMontrealMember
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Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=tcx_GuaranteedCreditFacilityMember
Namespace Prefix:
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Period Type:

Note 7 - Syndicated Revolver (Details Textual) $ in Millions			9 Months Ended	12 Months Ended
	Sep. 08, 2025 USD ($)	Sep. 22, 2023 USD ($)	Sep. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 14, 2019 USD ($)
Bank of Montreal [Member] \| The 2023 Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 240.0
Line of Credit Facility, Increasing Capacity, Total Funded Debt to Adjusted EBITDA Ratio Benchmark		3.75
Debt Instrument, Fee Amount	$ 0.4	$ 0.9
Legal Fees		$ 0.3
Debt Instrument, Extension, Term (Year)	1 year
Repayments of Debt			$ 5.0		$ 16.5	$ 10.0
Maximum Total Funded Debt to EBITDA Ratio		3.75
Minimum Fixed Charge Coverage Ratio		3
Debt Instrument, Required Principal Payment		$ 190.4
Amortization of Debt Issuance Costs				$ 0.6	$ 0.6
Bank of Montreal [Member] \| The 2023 Credit Facility [Member] \| Maximum [Member]
Line of Credit Facility, Additional Borrowing Capacity Available Through New Commitment		$ 60.0
Royal Bank, Bank of Montreal, Bank of Nova Scotia, HSBC and CIBC [Member] \| Guaranteed Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity							$ 240.0
Repayments of Debt						$ 17.8