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VAT TAX ISSUE IN BRAZIL AND PRIOR PERIOD ADJUSTMENTS (Details Textual) | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended
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Oct. 31, 2010 USD ($) | Oct. 31, 2010 BRL | May 31, 2010 USD ($) | May 31, 2010 BRL | Jan. 31, 2015 USD ($) | Jan. 31, 2015 BRL | Apr. 30, 2010 Latest Tax Year [Member] BRL | Apr. 30, 2010 Tax Year 2010 [Member] USD ($) | Apr. 30, 2010 Tax Year 2015 [Member] USD ($) | Jan. 31, 2015 After State Amnesty Accepted [Member] USD ($) | Jan. 31, 2015 After State Amnesty Accepted [Member] BRL | Oct. 31, 2010 Claim 2007-2009 By State Of Bahia [Member] USD ($) | Oct. 31, 2010 Claim 2007-2009 By State Of Bahia [Member] BRL | Jan. 31, 2014 Claim December 2013 By State of Sao Paulo [Member] USD ($) | Jan. 31, 2014 Claim December 2013 By State of Sao Paulo [Member] BRL | Jan. 31, 2015 Maximum [Member] | Jan. 31, 2015 Minimum [Member]
Value Added Tax Favorable Adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value Added Tax Examination Claims Incurred In Period |  |  |  |  | $ 3,000,000 lake_ValueAddedTaxExaminationClaimsIncurredInPeriod | 4,800,000 lake_ValueAddedTaxExaminationClaimsIncurredInPeriod |  |  |  |  |  |  |  | $ 45,000 lake_ValueAddedTaxExaminationClaimsIncurredInPeriod / lake_DefendedBasedUponAxis = lake_ClaimDecember2013ByStateOfSaoPauloMember |  |  |
Value Added Tax Examination Penalties and Interest Expense |  |  |  |  | 3,500,000 lake_ValueAddedTaxExaminationPenaltiesAndInterestExpense | 5,600,000 lake_ValueAddedTaxExaminationPenaltiesAndInterestExpense |  |  |  |  |  |  |  | 200,000 lake_ValueAddedTaxExaminationPenaltiesAndInterestExpense / lake_DefendedBasedUponAxis = lake_ClaimDecember2013ByStateOfSaoPauloMember |  |  |
Formal Judicial Process Period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years | 5 years
Value Added Tax Claims, Accepted Amnesty for Smaller Claim, Periodic Payment |  |  |  |  |  |  |  |  |  | 18,000 lake_ValueAddedTaxClaimsAcceptedAmnestyForSmallerClaimPeriodicPayment / lake_StateAmnestyAxis = lake_StateAmnestyMember | 42,000 lake_ValueAddedTaxClaimsAcceptedAmnestyForSmallerClaimPeriodicPayment / lake_StateAmnestyAxis = lake_StateAmnestyMember |  |  | 1,691 lake_ValueAddedTaxClaimsAcceptedAmnestyForSmallerClaimPeriodicPayment / lake_DefendedBasedUponAxis = lake_ClaimDecember2013ByStateOfSaoPauloMember | 4,500 lake_ValueAddedTaxClaimsAcceptedAmnestyForSmallerClaimPeriodicPayment / lake_DefendedBasedUponAxis = lake_ClaimDecember2013ByStateOfSaoPauloMember |  |
Value Added Tax Claims, Percentage of Abatement for Penalty and Interest |  |  |  |  |  |  |  |  |  | 80.00%lake_ValueAddedTaxClaimsPercentageOfAbatementForPenaltyAndInterest / lake_StateAmnestyAxis = lake_StateAmnestyMember | 80.00%lake_ValueAddedTaxClaimsPercentageOfAbatementForPenaltyAndInterest / lake_StateAmnestyAxis = lake_StateAmnestyMember |  |  |  |  |  |
Value Added Tax Claims, Penalty and Interest, Accrued |  |  |  |  |  |  |  |  |  | 153,000 lake_ValueAddedTaxClaimsPenaltyAndInterestAccrued / lake_StateAmnestyAxis = lake_StateAmnestyMember |  |  |  |  |  |  |
Value Added Tax Claims Including Penalty And Interest |  |  |  |  |  |  |  |  |  |  |  |  |  | 75,000 lake_ValueAddedTaxClaimsIncludingPenaltyAndInterest / lake_DefendedBasedUponAxis = lake_ClaimDecember2013ByStateOfSaoPauloMember | 172,000 lake_ValueAddedTaxClaimsIncludingPenaltyAndInterest / lake_DefendedBasedUponAxis = lake_ClaimDecember2013ByStateOfSaoPauloMember |  |
Value Added Tax Examination Income Tax Total |  |  |  |  | 6,500,000 lake_ValueAddedTaxExaminationIncomeTaxTotal | 10,400,000 lake_ValueAddedTaxExaminationIncomeTaxTotal |  |  |  |  |  |  |  |  |  |  |
Value Added Tax Claim Paid Amount |  |  | 1,900,000 lake_ValueAddedTaxClaimPaidAmount | 3,500,000 lake_ValueAddedTaxClaimPaidAmount |  |  |  |  |  |  |  |  |  |  |  |  |
Value Added Tax Credit Carryforward Amount |  |  | 1,100,000 lake_ValueAddedTaxCreditCarryforwardAmount | 2,100,000 lake_ValueAddedTaxCreditCarryforwardAmount |  |  |  |  |  |  |  |  |  |  |  |  |
Value Added Tax Judicial Tax Claim Amount |  |  |  |  | 5,800,000 lake_ValueAddedTaxJudicialTaxClaimAmount | 15,400,000 lake_ValueAddedTaxJudicialTaxClaimAmount |  |  |  |  |  | 2,300,000 lake_ValueAddedTaxJudicialTaxClaimAmount / lake_DefendedBasedUponAxis = lake_Claim20072009ByStateOfBahiaMember | 6,200,000 lake_ValueAddedTaxJudicialTaxClaimAmount / lake_DefendedBasedUponAxis = lake_Claim20072009ByStateOfBahiaMember |  |  |  |
Value Added Tax Fines And Penalties |  |  |  |  |  |  |  |  |  |  |  | 3,100,000 lake_ValueAddedTaxFinesAndPenalties / lake_DefendedBasedUponAxis = lake_Claim20072009ByStateOfBahiaMember | 8,300,000 lake_ValueAddedTaxFinesAndPenalties / lake_DefendedBasedUponAxis = lake_Claim20072009ByStateOfBahiaMember |  |  |  |
Value Added Tax Available For Credit | 1,300,000 lake_ValueAddedTaxAvailableForCredit | 3,400,000 lake_ValueAddedTaxAvailableForCredit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value Added Tax Fines And Penalties Defendable |  |  |  |  |  |  |  |  |  |  |  | 500,000 lake_ValueAddedTaxFinesAndPenaltiesDefendable / lake_DefendedBasedUponAxis = lake_Claim20072009ByStateOfBahiaMember | 1,300,000 lake_ValueAddedTaxFinesAndPenaltiesDefendable / lake_DefendedBasedUponAxis = lake_Claim20072009ByStateOfBahiaMember |  |  |  |
Value Added Tax Judicial deposit | 2,300,000 lake_ValueAddedTaxJudicialDeposit | 6,200,000 lake_ValueAddedTaxJudicialDeposit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value Added Tax Payable During Period |  |  |  |  |  |  |  |  |  |  |  | 5,500,000 lake_ValueAddedTaxPayableDuringPeriod / lake_DefendedBasedUponAxis = lake_Claim20072009ByStateOfBahiaMember | 14,600,000 lake_ValueAddedTaxPayableDuringPeriod / lake_DefendedBasedUponAxis = lake_Claim20072009ByStateOfBahiaMember |  |  |  |
Value Added Tax Judicial Tax Claim Percentage |  |  |  |  | 20.00%lake_ValueAddedTaxJudicialTaxClaimPercentage | 20.00%lake_ValueAddedTaxJudicialTaxClaimPercentage |  |  |  |  |  |  |  |  |  |  |
Value Added Tax Credit |  |  |  |  |  |  | 3,400,000 lake_ValueAddedTaxCredit / us-gaap_TaxPeriodAxis = us-gaap_LatestTaxYearMember | 1,900,000 lake_ValueAddedTaxCredit / us-gaap_TaxPeriodAxis = us-gaap_TaxYear2010Member | 1,300,000 lake_ValueAddedTaxCredit / us-gaap_TaxPeriodAxis = lake_TaxYearTwoThousandFifteenMember |  |  |  |  |  |  |  |
Value Added Tax Favourable Adjustment |  |  |  |  | 700,000 lake_ValueAddedTaxFavourableAdjustment |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Opinion of Counsel |  |  |  |  | our attorney informs us that R$1.0 (US $0.4) million will be successfully defended based on a lapse of statute of limitations and R$0.3 (US $0.1) million based on state auditor misunderstanding. | our attorney informs us that R$1.0 (US $0.4) million will be successfully defended based on a lapse of statute of limitations and R$0.3 (US $0.1) million based on state auditor misunderstanding. |  |  |  |  |  |  |  |  |  |  |
Taxes Payable |  |  |  |  | $ 2,300,000 us-gaap_TaxesPayableCurrentAndNoncurrent | 6,200,000 us-gaap_TaxesPayableCurrentAndNoncurrent |  |  |  |  |  |  |  |  |  |  |

X
- Definition This element represents the number of years of judicial process. + References No definition available. + Details
Name: | lake_FormalJudicialProcessPeriod
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Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of value added tax available for credit. + References No definition available. + Details
Name: | lake_ValueAddedTaxAvailableForCredit
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of value payable for the claim of income tax. + References No definition available. + Details
Name: | lake_ValueAddedTaxClaimPaidAmount
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition This element represents that, the amount of periodic payments for accepted amnesty for smaller claim under value added tax claims. + References No definition available. + Details
Name: | lake_ValueAddedTaxClaimsAcceptedAmnestyForSmallerClaimPeriodicPayment
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition This element represents that, the amount of accruals including penalty and interest under value added tax claims. + References No definition available. + Details
Name: | lake_ValueAddedTaxClaimsIncludingPenaltyAndInterest
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition This element represents that, the amount of accrued penalty and interest under value added tax claims. + References No definition available. + Details
Name: | lake_ValueAddedTaxClaimsPenaltyAndInterestAccrued
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition This element represents that, the percentage of abatement for penalty and interest under value added tax claims. + References No definition available. + Details
Name: | lake_ValueAddedTaxClaimsPercentageOfAbatementForPenaltyAndInterest
Namespace Prefix: | lake_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of value added tax credit recorded. + References No definition available. + Details
Name: | lake_ValueAddedTaxCredit
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of value added tax arising from the unused tax credit carryforward that cannot be utilized on the tax return during a year that may be carried forward to reduce the payable for statutory sales and use taxes, including value added tax. + References No definition available. + Details
Name: | lake_ValueAddedTaxCreditCarryforwardAmount
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The claims Incurred in Period resulting from the income tax examination that has been recorded during the period. + References No definition available. + Details
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Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The estimated loss resulting from the income tax examination that has been recorded during the period including interest and penalties. + References No definition available. + Details
Name: | lake_ValueAddedTaxExaminationIncomeTaxTotal
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The sum of the amounts of estimated penalties and interest recognized in the period arising from tax examinations. + References No definition available. + Details
Name: | lake_ValueAddedTaxExaminationPenaltiesAndInterestExpense
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Value added tax favourable adjustment. + References No definition available. + Details
Name: | lake_ValueAddedTaxFavourableAdjustment
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of VAT fines, penalties paid during the period. + References No definition available. + Details
Name: | lake_ValueAddedTaxFinesAndPenalties
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of value added tax fine and penalties defendable during the reporting period. + References No definition available. + Details
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Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of judicial deposit payable subject to next amnesty's arrival. + References No definition available. + Details
Name: | lake_ValueAddedTaxJudicialDeposit
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition This element represents the amount of judicial tax claim filed against the company. + References No definition available. + Details
Name: | lake_ValueAddedTaxJudicialTaxClaimAmount
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition This element represents the percentage of judicial tax claim filed against the company. + References No definition available. + Details
Name: | lake_ValueAddedTaxJudicialTaxClaimPercentage
Namespace Prefix: | lake_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The total VAT payable during the period. + References No definition available. + Details
Name: | lake_ValueAddedTaxPayableDuringPeriod
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Balance Type: | na
Period Type: | duration

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- Definition Sets forth the entity's counsel's opinion as to the likely outcome of the matter, or that no such opinion can as yet be expressed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 55 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6396582&loc=d3e15259-108350 + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 1, 5 -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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