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Major Supplier | 9 Months Ended
--- | ---
Oct. 31, 2012
Major Supplier Disclosure [Abstract] |
Major Supplier [Text Block] |
7. | Major Supplier
We did not purchase in excess of 10% of our cost of goods sold from any one supplier during the nine-month period ended October 31, 2012.

X
- Details
Name: | lake_MajorSupplierDisclosureAbstract
Namespace Prefix: | lake_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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