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Note 6 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Domain Services Operating Segment [Member] |  |
Goodwill Percentage Related to Operating Segments | 90.00% |
Network Access Services [Member] |  |
Goodwill Percentage Related to Operating Segments | 10.00% |
Domain Name Services [Member] |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | $ 20,985 | $ 12,493
Finite-Lived Intangible Assets, Accumulated Amortization | 6,000,000 |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | $ 20,985 | $ 12,493

X
- Definition Represents the percentage of goodwill in relation to the company's operating segments. + References No definition available. + Details
Name: | tcx_GoodwillPercentageRelatedToOperatingSegments
Namespace Prefix: | tcx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tcx_NetworkAccessServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |