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Note 6 - Derivative Instruments and Hedging Activities (Details) - Movement in AOCI Balance (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Movement in AOCI Balance [Abstract]    
Opening AOCI balance – December 31, 2014 $ (946,676)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1  
Opening AOCI balance – December 31, 2014 324,235tcx_AccumulatedOtherComprehensiveIncomeTax  
Opening AOCI balance – December 31, 2014 (622,441)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax  
Other comprehensive income (loss)before reclassifications (1,510,346)us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax  
Other comprehensive income (loss)before reclassifications 549,480us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax  
Other comprehensive income (loss)before reclassifications (960,866)us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax (442,978)us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
Amount reclassified from accumulated other comprehensive income 645,676us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax  
Amount reclassified from accumulated other comprehensive income (229,602)us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax  
Amount reclassified from accumulated other comprehensive income 416,074us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax 227,511us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
Other comprehensive income (loss) for the three months ended March 31, 2015 (864,670)us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax  
Other comprehensive income (loss) for the three months ended March 31, 2015 319,878us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax  
Other comprehensive income (loss) for the three months ended March 31, 2015 (544,792)us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax  
Ending AOCI balance – March 31, 2015 (1,811,346)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1  
Ending AOCI balance – March 31, 2015 644,113tcx_AccumulatedOtherComprehensiveIncomeTax  
Ending AOCI balance – March 31, 2015 $ (1,167,233)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax