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Note 9 - Income Taxes (Details) - Provision for Income Taxes Differs From the Amount Computed by Applying the Statutory Federal Income Tax Rate (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Provision for Income Taxes Differs From the Amount Computed by Applying the Statutory Federal Income Tax Rate (Incomplete) [Abstract]
Income for the year before provision for income taxes	$ 9,428,325us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	$ 5,799,803us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	$ 6,428,298us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Computed expected tax expense	3,205,631us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1,971,933us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2,185,621us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State income taxes	64,056us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes	14,500us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes	16,071us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Permanent differences, including foreign exchange	192,260us-gaap_IncomeTaxReconciliationNondeductibleExpense	13,700us-gaap_IncomeTaxReconciliationNondeductibleExpense	21,728us-gaap_IncomeTaxReconciliationNondeductibleExpense
Investment tax credits recovered		(115,455)tcx_IncomeTaxReconciliationInvestmentTaxCreditsRecovered	(106,941)tcx_IncomeTaxReconciliationInvestmentTaxCreditsRecovered
Other, including alternative minimum tax and adjustments to opening deferred tax assets	(407,718)us-gaap_IncomeTaxReconciliationOtherAdjustments	(265,339)us-gaap_IncomeTaxReconciliationOtherAdjustments	(112,323)us-gaap_IncomeTaxReconciliationOtherAdjustments
Provision for (recovery of) income taxes	$ 3,054,229us-gaap_IncomeTaxExpenseBenefit	$ 1,619,339us-gaap_IncomeTaxExpenseBenefit	$ 2,004,156us-gaap_IncomeTaxExpenseBenefit

X

- Definition

Represents the investment tax credits recovered.

+ References

No definition available.

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- Definition

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h))

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-Number 210

-Section 08

-Paragraph h

-Article 4



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Income Tax Expense (or Benefit)

-URI http://asc.fasb.org/extlink&oid=6515339



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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).

+ References

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