Subsequent Events (Details Textual) - Subsequent Event [Member]	May 10, 2017 USD ($)
Subsequent Event [Line Items]
Line of Credit Facility, Interest Rate Description	For that portion of the term loan that consists of Eurodollar loans, the term loan shall bear interest at the LIBOR Market Index Rate ("LIBOR") plus 2.0% per annum, and for that portion of the term loan that consists of base rate loans, the term loan shall bear interest at the base rate then in effect plus 1.0% per annum. All principal and unpaid accrued interest under the revolver credit facility shall be due and payable on the maturity date of the revolver. For that portion of the revolver loan that consists of Eurodollar loans, the revolver shall bear interest at LIBOR plus a margin rate of 1.75% per annum for the first six months and thereafter between 1.5% and 2.0%, depending on the Company's "availability calculation" (as defined in the Loan Agreement) and, for that portion of the revolver that consists of base rate loans, the revolver shall bear interest at the base rate then in effect plus a margin rate of 0.75% per annum for the first six months and thereafter between 0.50% and 1.0%, depending on the availability calculation. As of the closing, the Company elected all borrowings under the Loan Agreement to accrue interest at LIBOR which, as of that date, was 0.99500%. As such, the initial rate of interest for the revolver is 2.745% per annum and the initial rate of interest for the term loan is 2.995% per annum. The Loan Agreement provides for payment of an unused line fee of between .25% and .50%, depending on the amount by which the revolving credit loan commitment exceeds the amount of the revolving credit loans outstanding (including letters of credit), which shall be payable monthly in arrears on the average daily unused portion of the revolver.
Sun Trust Bank [Member] \| Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Long-term Line of Credit	$ 20,000,000
Line of Credit Facility, Expiration Date	May 10, 2020
Line of Credit Facility Increase Limit	$ 10,000,000
Line Of Credit Facility Borrowing Base Commitment Amount	$ 1,500,000
Line Of Credit Facility Borrowing Base Commitment Percentage	7.50%
Line of Credit Facility, Maximum Borrowing Capacity	$ 30,000,000
Line Of Credit Facility, Borrowing Base Calculation, Percentage Of Accounts Receivable	85.00%
Line of Credit Facility, Periodic Payment	$ 13,125
Line of Credit Facility, Date of First Required Payment	Jun. 01, 2017
Sun Trust Bank [Member] \| Letter of Credit [Member]
Subsequent Event [Line Items]
Long-term Line of Credit	$ 5,000,000
Sun Trust Bank [Member] \| Term Loan [Member]
Subsequent Event [Line Items]
Long-term Line of Credit	1,575,000
AloStar Bank of Commerce [Member] \| Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Repayments of Long-term Lines of Credit	$ 3,000,000

This element represents the percentage of accounts receivable used in calculation of borrowing base.

No definition available.

Name:	lake_LineOfCreditFacilityBorrowingBaseCalculationPercentageOfAccountsReceivable
Namespace Prefix:	lake_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility Borrowing Base Commitment Amount

+ References

No definition available.

+ Details

Name:	lake_LineOfCreditFacilityBorrowingBaseCommitmentAmount
Namespace Prefix:	lake_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line Of Credit Facility Borrowing Base Commitment Percentage

+ References

No definition available.

+ Details

Name:	lake_LineOfCreditFacilityBorrowingBaseCommitmentPercentage
Namespace Prefix:	lake_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility Increase Limit

+ References

No definition available.

+ Details

Name:	lake_LineOfCreditFacilityIncreaseLimit
Namespace Prefix:	lake_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the first payment under the line of credit must be paid, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityDateOfFirstRequiredPayment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateDescription
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the required periodic payments of both interest and principal.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfLongTermLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
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Balance Type:
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- Details

Name:	us-gaap_LineOfCreditFacilityAxis=lake_SunTrustBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=lake_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_LineOfCreditFacilityAxis=lake_AlostarBankOfCommerceMember
Namespace Prefix:
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