XML 47 R36.htm IDEA: XBRL DOCUMENT
v3.5.0.1

Major Supplier (Details Textual) | 3 Months Ended
--- | ---
Apr. 30, 2016 | Apr. 30, 2015
Major Supplier [Line Items] |  |
Entity Wide Purchases Major Supplier Percentage | 10.00% | 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
- References No definition available. + Details
Name: | lake_MajorSupplierLineItems
Namespace Prefix: | lake_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration