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Note 4 - Property and Equipment (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)
Property, Plant and Equipment, Fully Depreciated Writedown	$ 0.1

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