2.4.0.8010 - Disclosure - Note 5 -truefalsefalse1false falsefalsec14_From1Jan2013To30Jun2013http://www.sec.gov/CIK0000097517duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_IncomeTaxDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Income Tax Disclosure [Abstract]2false 2us-gaap_IncomeTaxDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<table id="MTAB1266" style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 100%; TEXT-INDENT: 0px" cellspacing="0" cellpadding="0" border="0"> <tr> <td style="VERTICAL-ALIGN: top; WIDTH: 36pt"> <p id="PARA1267" style="MARGIN-BOTTOM: 0pt; TEXT-ALIGN: justify; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"> <font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif">(5)</font> </p> </td> <td style="VERTICAL-ALIGN: top"> <p id="PARA1268" style="MARGIN-BOTTOM: 0pt; TEXT-ALIGN: justify; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"> <font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif">The Trust&#8217;s effective Federal income tax rate is less than the 34% statutory rate because taxable income is reduced by statutory percentage depletion allowed on mineral royalty income.</font> </p> </td> </tr> </table><br/>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: 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)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 false0Income Tax Disclosure [Text Block]falseNote 5 -UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.TPLTrust.com/role/Note512