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Major Supplier | 6 Months Ended
--- | ---
Jul. 31, 2016
Major Supplier Disclosure [Abstract] |
Major Supplier [Text Block] |
7. | Major Supplier
No supplier accounted for more than 10% of cost of sales during the three and six month periods ended July 31, 2016 and 2015.

X
- References No definition available. + Details
Name: | lake_MajorSupplierDisclosureAbstract
Namespace Prefix: | lake_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The entire disclosure is related to purchased of raw materials. + References No definition available. + Details
Name: | lake_MajorSupplierTextBlock
Namespace Prefix: | lake_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration