XML 45 R34.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Major Supplier (Details Textual) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2016 | Jul. 31, 2015 | Jul. 31, 2016 | Jul. 31, 2015
Major Supplier [Line Items] |  |  |  |
Entity Wide Purchases Major Supplier Percentage |  |  | 10.00% | 10.00%
Precision Fabrics Group [Member] |  |  |  |
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

X
- Details
Name: | us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=lake_PrecisionFabricsGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |