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Note 5 - Property and Equipment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Property, Plant and Equipment [Abstract] |  |
Property, Plant and Equipment, Fully Depreciated, Write-down | $ 0.4 | $ 1.7

X
- Definition The cost of property, plant and equipment written off during the period due to being fully depreciated. + References No definition available. + Details
Name: | tcx_PropertyPlantAndEquipmentFullyDepreciatedWritedown
Namespace Prefix: | tcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration