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COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Commitments And Contingencies [Line Items]
Gross rental	$ 651,918	$ 559,485
Rentals paid to related parties	$ 0	$ 0

X

- Details

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

X

- Definition

The element represents the rental expenses paid to related parties.

+ References

No definition available.

+ Details

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

X

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration