2.4.0.80031 - Disclosure - 10. RECONCILIATION OF THE AGGREGATE CARRYING AMOUNT OF ASSET RETIREMENT OBLIGATIONS (Details)truefalsefalse1false USDfalsefalse$From2013-01-01to2013-03-31http://www.sec.gov/CIK0001075773duration2013-01-01T00:00:002013-03-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$From2012-01-01to2012-03-31http://www.sec.gov/CIK0001075773duration2012-01-01T00:00:002012-03-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false USDfalsefalse$From2012-01-01to2012-12-31http://www.sec.gov/CIK0001075773duration2012-01-01T00:00:002012-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 1TECO_ReconciliationOfAggregateCarryingAmountOfAssetRetirementObligationsDetailsAbstractTECO_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Reconciliation Of Aggregate Carrying Amount Of Asset Retirement Obligations Details2false 2us-gaap_AssetRetirementObligationus-gaap_truecreditinstantfalsefalsefalsefalsefalsetruefalsefalseperiodStartLabel1truefalsefalse225881225881USD$falsetruefalse2truefalsefalse130397130397USD$falsetruefalse3truefalsefalse130397130397USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 143 -Paragraph 3, 10, 22 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Asset Retirement Obligation -URI http://asc.fasb.org/extlink&oid=6505190 false2Beginning Balance3false 2TECO_AssetRetirementObligationIncreaseDueToPurchasedLeasesTECO_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00  falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse7539675396falsefalsefalsexbrli:monetaryItemTypemonetaryNo authoritative reference available.No definition available.false2Increase due to purchased leases4false 2TECO_LiabilitiesSettledTECO_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse-168582-168582falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse-3271-3271falsefalsefalsexbrli:monetaryItemTypemonetaryNo authoritative reference available.No definition available.false2Liabilities settled5false 2us-gaap_AssetRetirementObligationAccretionExpenseus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse14331433falsefalsefalse2truefalsefalse11761176falsefalsefalse3truefalsefalse1817118171falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392676&loc=d3e7480-110848 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 143 -Paragraph 22 -Subparagraph c(3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 143 -Paragraph 13, 14 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Accretion expense6false 2TECO_RevisionOfExistingLiabilitiesTECO_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00  falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse51885188falsefalsefalsexbrli:monetaryItemTypemonetaryNo authoritative reference available.No definition available.false2Revision of existing liabilities7false 2us-gaap_AssetRetirementObligationus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsetruefalseperiodEndLabel1truefalsefalse5873258732USD$falsetruefalse2falsefalsefalse00falsefalsefalse3truefalsefalse225881225881USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 143 -Paragraph 3, 10, 22 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Asset Retirement Obligation -URI http://asc.fasb.org/extlink&oid=6505190 false2Asset retirement obligation at balance sheet datefalse10. RECONCILIATION OF THE AGGREGATE CARRYING AMOUNT OF ASSET RETIREMENT OBLIGATIONS (Details) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://treatyenergy.com/role/ReconciliationOfAggregateCarryingAmountOfAssetRetirementObligationsDetails37