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Note 10 - Subsequent Events (Detail) In Millions, except Share data, unless otherwise specified	0 Months Ended
	Nov. 13, 2012	Oct. 01, 2012 USD ($)	Oct. 01, 2012 CAD	Mar. 31, 2012 USD ($)	Oct. 01, 2012 Canada [Member]	Nov. 13, 2012 Minimum [Member] USD ($)	Nov. 13, 2012 Maximum [Member] USD ($)
Derivative, Notional Amount (in Dollars and Dollars)		$ 19.3	19.3
Derivative, Forward Exchange Rate		1.00	1.00		1.0073
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in Shares)	6,500,000			3,840,000
Share Price (in Dollars per share)				$ 0.77		$ 1.35	$ 1.50
Tender Offer Open Period	20 days

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

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

X

- Definition

Tender Offer Open Period

+ References

No definition available.

+ Details

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Namespace Prefix:	tcx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Contractual rate at which a foreign currency can be purchased or sold.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
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X

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

+ Details

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X

- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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