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VAT Tax Issue in Brazil (Details Textual)			9 Months Ended				12 Months Ended	9 Months Ended
	Oct. 31, 2014 USD ($)	Jan. 31, 2014 USD ($)	Oct. 31, 2014 After State Amnesty Accepted [Member] USD ($)	Oct. 31, 2014 After State Amnesty Accepted [Member] BRL	Oct. 31, 2014 Claim December 2013 By State of Sao Paulo [Member] USD ($)	Oct. 31, 2014 Claim December 2013 By State of Sao Paulo [Member] BRL	Jan. 31, 2014 Claim December 2013 By State of Sao Paulo [Member] USD ($)	Oct. 31, 2014 Maximum [Member]	Oct. 31, 2014 Minimum [Member]
Vat Tax Issue In Brazil [Line Items]
Value Added Tax Examination Claims Incurred In Period							$ 45,000
Value Added Tax Examination Penalties and Interest Expense							200,000
Formal Judicial Process Period								10 years	5 years
Value Added Tax Claims, Accepted Amnesty for Smaller Claim, Number of Periodic Payment			8 monthly payments	8 monthly payments	120 monthly installments	120 monthly installments
Value Added Tax Claims, Accepted Amnesty for Smaller Claim, Periodic Payment			19,000	42,000	4,500
Value Added Tax Claims, Percentage of Abatement for Penalty and Interest			80.00%	80.00%
Value Added Tax Claims, Penalty and Interest, Accrued			82,000	189,000
Value Added Tax Claims Including Penalty And Interest			153,000		75,000	172,000
Accrued Value Added Taxes Noncurrent	$ 3,361,774	$ 3,329,275

X

- Definition

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign VAT tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include VAT taxes payable, noncurrent.

+ References

No definition available.

+ Details

Name:	lake_AccruedValueAddedTaxesNoncurrent
Namespace Prefix:	lake_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

This element represents the number of years of judicial process.

+ References

No definition available.

+ Details

Name:	lake_FormalJudicialProcessPeriod
Namespace Prefix:	lake_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This element represents that, the description of the number of periodic payments for accepted amnesty for smaller claim under value added tax claims.

+ References

No definition available.

+ Details

Name:	lake_ValueAddedTaxClaimsAcceptedAmnestyForSmallerClaimNumberOfPeriodicPayment
Namespace Prefix:	lake_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

X

- 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

X

- 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

X

- 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

X

- Definition

The claims Incurred in Period resulting from the income tax examination that has been recorded during the period.

+ References

No definition available.

+ Details

Name:	lake_ValueAddedTaxExaminationClaimsIncurredInPeriod
Namespace Prefix:	lake_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

X

- Details

Name:	lake_VatTaxIssueInBrazilLineItems
Namespace Prefix:	lake_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration