2.4.0.82405402 - Disclosure - Long-Term Debt (Details)truefalsefalse1false USDfalsefalseD2012Q4Nov8http://www.sec.gov/CIK0001350420duration2012-11-07T00:00:002012-11-08T00:00:00ratioStandardhttp://www.xbrl.org/2003/instancepurexbrli0usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170$2false falsefalseD2012Q4SDhttp://www.sec.gov/CIK0001350420duration2012-08-18T00:00:002012-08-20T00:00:00ratioStandardhttp://www.xbrl.org/2003/instancepurexbrli03false USDfalsefalse$I2013Q3http://www.sec.gov/CIK0001350420instant2013-06-30T00:00:000001-01-01T00:00:00ratioStandardhttp://www.xbrl.org/2003/instancepurexbrli0usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4false USDfalsefalse$I2012Q4http://www.sec.gov/CIK0001350420instant2012-09-30T00:00:000001-01-01T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3us-gaap_DebtInstrumentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Debt Instrument [Line Items]2false 4lwenergy_RevolvingTermLoanlwenergy_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1100000011000000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3truefalsefalse00[1]USD$falsetruefalse4truefalsefalse32370003237000[1]USD$falsetruefalsexbrli:monetaryItemTypemonetaryRevolving Term LoanNo definition available.false2Revolving term loan3false 4lwenergy_NotePayableIdotlwenergy_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse187053187053[2]falsefalsefalse4truefalsefalse238021238021[2]falsefalsefalsexbrli:monetaryItemTypemonetaryIncluding the current and noncurrent portions, aggregate carrying amount of note payable due to Iowa Department of Transportation as of the balance sheet date, with initial maturities beyond one year.No definition available.false2Note payable to Iowa Department of Transportation4false 4us-gaap_NotesPayableus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse187053187053falsefalsefalse4truefalsefalse34750213475021falsefalsefalsexbrli:monetaryItemTypemonetaryIncluding the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13, 16 -Article 9 true2Long-term debt, total5false 4us-gaap_LongTermDebtCurrentus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse-25888-25888falsefalsefalse4truefalsefalse-50968-50968falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 false2Less current maturities6false 4us-gaap_LongTermNotesPayableus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse161165161165falsefalsefalse4truefalsefalse34240533424053falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Long-term debt, less current maturities7false 4us-gaap_DebtInstrumentDescriptionOfVariableRateBasisus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00LIBORfalsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringThe reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.No definition available.false0Debt instrument, description of variable rate basis8false 4us-gaap_DebtInstrumentBasisSpreadOnVariableRate1us-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.040.04falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalsenum:percentItemTypepurePercentage points added to the reference rate to compute the variable rate on the debt instrument.No definition available.false0Debt instrument, basis spread on variable rate9false 4us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentageus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2truetruefalse0.0060.006falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalsenum:percentItemTypepureThe fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.No definition available.false0Line of credit facility, unused capacity, commitment fee percentage10false 4lwenergy_RailroadRevolvingLoanFundlwenergy_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse500000500000USD$falsetruefalse4falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRailroad revolving loan fund monies received from the Iowa Department of transportationNo definition available.false2Railroad revolving loan fund11false 4us-gaap_DebtInstrumentInterestRateStatedPercentageus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3truetruefalse0.02110.0211falsefalsefalse4falsetruefalse00falsefalsefalsenum:percentItemTypepureContractual interest rate for funds borrowed, under the debt agreement.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false0Debt instrument, interest rate, stated percentage1The Company entered into a new master loan agreement with a financial institution on August 21, 2012. One of the supplements of the agreement is a revolving term loan available for up to $11,000,000. This supplement amends and restates the supplement dated November 8, 2012. The revolving term loan is to provide working capital to the Company and to finance construction projects related to conversion to natural gas. The Company will pay interest on the unpaid balance at a variable interest rate (adjusted on a weekly basis) based upon the one-month LIBOR index rate plus 4.00%. The Company will also pay a commitment fee on the average daily unused portion of the loan at the rate of .60% per annum, payable monthly. The loan is secured by substantially all assets of the Company and subject to certain financial and nonfinancial covenants as defined in the master loan agreement. The term of the loan will expire, and the Company must pay all unpaid principal amounts outstanding under the revolving term loan, on November 1, 2019.2The Company entered into a $500,000 loan agreement with the Iowa Department of Transportation (IDOT) in February 2005. The proceeds were disbursed upon submission of paid invoices. Interest at 2.11% began accruing on January 1, 2007. Principal payments will be due semiannually through July 2016. The loan is secured by all rail track material constructed as part of the plant construction. The debt is subordinate to the above financial institution revolving term loan (A) and revolving credit loan (Note 4.)falseLong-Term Debt (Details) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.lincolnwayenergy.com/role/LongTermDebtDetails411