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COMMITMENTS AND CONTINGENCIES (Details) (USD $) | 12 Months Ended
--- | ---
Jan. 31, 2013 | Jan. 31, 2012
Gross rental | $ 559,485 | $ 749,645
Rentals paid to related parties | $ 0 | $ 63,540

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 Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration