XML 20 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Major Supplier (Details Textual) | 3 Months Ended
--- | ---
Apr. 30, 2014
Major Supplier [Line Items] |
Entity Wide Purchases Major Supplier Percentage | 10.00%

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