XML 70 R38.htm IDEA: XBRL DOCUMENT
v2.4.0.6

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