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Major Supplier (Details Textual)	9 Months Ended
	Oct. 31, 2012
Percentage Of Cost Of Goods Sold Not Excess Purchased From Major Suppliers	10.00%

X

- Definition

This element represents that, percentage of cost of goods sold not excess purchased from major suppliers.

+ References

No definition available.

+ Details

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