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MAJOR SUPPLIER (Details Textual) (Southern Mills [Member])	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Southern Mills [Member]
Major Supplier [Line Items]
Entity Wide Purchases Major Supplier Percentage	12.70%	11.70%

X

- Definition

Percentage of purchases from a single external supplier that accounts for 10 percent or more of an entity's purchases.

+ References

No definition available.

+ Details

Name:	lake_EntityWidePurchasesMajorSupplierPercentage
Namespace Prefix:	lake_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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