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Note 3 - Acquisitions (Details Textual) - USD ($)					12 Months Ended
	Feb. 13, 2018	Feb. 01, 2017	Jan. 20, 2017	Feb. 27, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Redeemable Noncontrolling Interest, Equity, Carrying Amount					$ 1,136,390	$ 3,086,090
Redeemable Noncontrolling Interest, Equity, Redemption Value					1,200,000
Payments to Acquire Businesses, Gross							$ 357,492
Ting Virginia LLC [Member] | Subsequent Event [Member]
Repurchase of Redeemable Noncontrolling Interest, Percentage	10.00%
Ting Virginia LLC [Member]
Business Acquisition, Percentage of Voting Interests Acquired		20.00%		70.00%
Business Combination, Consideration Transferred		$ 2,000,000		$ 3,500,000
Ting Virginia LLC [Member] | Exercisable by the Minority Shareholders [Member]
Business Combination, Interest Subject to Call Option, Not Exercised in Period		10.00%
Ting Virginia LLC [Member] | Exercisable by the Minority Shareholders [Member] | Exercisable on Fourth Anniversary of Business Combination [Member]
Business Combination, Consideration to be Transfered Upon Exercise of Options Per Percentage Point		$ 120,000
eNom, Incorporated [Member]
Business Combination, Consideration Transferred			$ 77,831,677
Payments to Acquire Businesses, Gross			83,500,000
Business Combination, Consideration Transferred, Estimated Price Adjusments			$ 5,700,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					110,800,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual					5,100,000
eNom, Incorporated [Member] | General and Administrative Expense [Member]
Business Acquisition, Transaction Costs					$ 300,000	$ 500,000

X

- Definition

Represents the amount that will be transferred upon the exercise of the option per percentage point.

+ References

No definition available.

+ Details

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Namespace Prefix:	tcx_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of estimated price adjustments that are expected to be incurred by the acquiring entity. Excludes cash.

+ References

No definition available.

+ Details

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

X

- Definition

Represent the percentage of the acquiree subject to put and call option not exercised in period in a business combination.

+ References

No definition available.

+ Details

Name:	tcx_BusinessCombinationInterestSubjectToCallOptionNotExercisedInPeriod
Namespace Prefix:	tcx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of redeemable noncontrolling interest that would be purchased during the period.

+ References

No definition available.

+ Details

Name:	tcx_RepurchaseOfRedeemableNoncontrollingInterestPercentage
Namespace Prefix:	tcx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

+ Details

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

X

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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

X

- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration

X

- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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Balance Type:	credit
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X

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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

X

- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (12)(c)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (16)(c)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 15
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 14
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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Balance Type:	credit
Period Type:	instant

X

- Definition

Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 24(b)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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Period Type:	instant

X

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X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=tcx_TingVirginiaLLCMember
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Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementScenarioAxis=tcx_ExercisableByTheMinorityShareholdersMember
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Data Type:	na
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X

- Details

Name:	us-gaap_VestingAxis=tcx_ExercisableOnFourthAnniversaryOfBusinessCombinationMember
Namespace Prefix:
Data Type:	na
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Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=tcx_eNomIncorporatedMember
Namespace Prefix:
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Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
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