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Note 9 - Income Taxes (Details) - Unrecognized Tax Benefits (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014
Unrecognized Tax Benefits (Incomplete) [Abstract]
Balance, beginning of year	$ 382,000us-gaap_UnrecognizedTaxBenefits	$ 117,000us-gaap_UnrecognizedTaxBenefits
Decrease in uncertain tax benefits of prior years	(265,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Balance, end of year	$ 117,000us-gaap_UnrecognizedTaxBenefits	$ 117,000us-gaap_UnrecognizedTaxBenefits

X

- Details

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Namespace Prefix:	tcx_
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Balance Type:	na
Period Type:	duration

X

- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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X

- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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Balance Type:	debit
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