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Asset Sales (Details Textual) | 6 Months Ended
--- | ---
Jul. 31, 2013 USD ($) | Jul. 31, 2013 INR | Jul. 31, 2012 USD ($)
Proceeds from Sale of Real Estate | $ 1,003,589 |  | $ 0
Dividend Paid To Parent Entity | 1,700,000 |  |
Dividend Paid To Parent Entity Tax | 422,321 |  |
Sale Price Of Assets | $ 415,000 | 25,000,000 |

X
- Definition This element represents the amount dividend paid to parent entity during the period. + References No definition available. + Details
Name: | lake_DividendPaidToParentEntity
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents the tax amount of dividend paid to parent entity during the period. + References No definition available. + Details
Name: | lake_DividendPaidToParentEntityTax
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This elements represents the sale price assets. + References No definition available. + Details
Name: | lake_SalePriceOfAssets
Namespace Prefix: | lake_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Cash received for the sale of real estate that is not part of an investing activity during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration