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Discontinued Operations in India (Details Textual) (USD $) In Millions, unless otherwise specified | 9 Months Ended
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Oct. 31, 2013
Disposal Group, Including Discontinued Operation, Reduction in Value of Total Assets | $ 0.2

X
- Definition Amount of reduction in value of total assets as a result of sales of inventory and one of the three plots of real estate owned of disposal group, including a component of the entity (discontinued operation). + References No definition available. + Details
Name: | lake_DisposalGroupIncludingDiscontinuedOperationReductionInValueOfTotalAssets
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration