CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY [Parenthetical]	9 Months Ended
Oct. 31, 2013
Warrants Issued To Purchase Common Stock, Shares	566,015

Number of warrants issued to purchase common stock shares.

No definition available.

Name:	lake_WarrantsIssuedToPurchaseCommonStockShares
Namespace Prefix:	lake_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration