XML 36 R32.htm IDEA: XBRL DOCUMENT v2.4.0.6

Business (Details Textual)	3 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Entity Wide Revenue Major Customer Description	No customer accounted for more than 10% of net sales	No customer accounted for more than 10% of net sales

X

- Definition

Description of entity wide revenue major customer resulted in more than 10% of net sales.

+ References

No definition available.

+ Details

Name:	lake_EntityWideRevenueMajorCustomerDescription
Namespace Prefix:	lake_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration