The period in which goodwill arising from a business combination is expected to be deductible for tax purposes.

No definition available.

Name:	lmat_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductiblePeriod
Namespace Prefix:	lmat_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of contingent consideration before multiplied by fraction in a business combination.

+ References

No definition available.

+ Details

Name:	lmat_BusinessCombinationContingentConsiderationBeforeMultipliedByFraction
Namespace Prefix:	lmat_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The denominator of the fraction, less amount of any individual year earn out paid, that is used to determine contingent consideration in a business combination.

+ References

No definition available.

+ Details

Name:	lmat_BusinessCombinationContingentConsiderationDenominatorLessAmountPaid
Namespace Prefix:	lmat_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of liability paid arising from contingent consideration in a business combination.

+ References

No definition available.

+ Details

Name:	lmat_BusinessCombinationContingentConsiderationLiabilityPercent
Namespace Prefix:	lmat_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The minimum units sold in three years for contingent consideration in a business combination.

+ References

No definition available.

+ Details

Name:	lmat_BusinessCombinationContingentConsiderationMinimumUnitSalesInThreeYears
Namespace Prefix:	lmat_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of combined individual year targets that the minimum units sold in the three years necessary for contingent consideration in a business combination.

+ References

No definition available.

+ Details

Name:	lmat_BusinessCombinationContingentConsiderationMinimumUnitSalesInThreeYearsPercentOfCombinedIndividualYearTargets
Namespace Prefix:	lmat_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of units required to be sold in the twelve month period for contingent consideration in a business combination.

+ References

No definition available.

+ Details

Name:	lmat_BusinessCombinationContingentConsiderationUnitSalesInTwelveMonthPeriod
Namespace Prefix:	lmat_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=126966197&loc=d3e6613-128477

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI https://asc.fasb.org/extlink&oid=126966197&loc=d3e6578-128477

+ Details

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e7008-128479

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126966325&loc=d3e6819-128478

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

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

- Definition

Amount of escrow deposit disbursements related to property acquisition in noncash investing or financing transactions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4332-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4313-108586

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586

+ Details

Name:	us-gaap_EscrowDepositDisbursementsRelatedToPropertyAcquisition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

+ Details

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

- Details

Name:	us-gaap_BusinessAcquisitionAxis=lmat_ArtegraftIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_FirstEarnoutMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_SecondEarnoutMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_ThirdEarnoutMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_CatchupPaymentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=lmat_CardioCelAndVascuCelBiologicPatchesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=lmat_TechnologyLicensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_AchievingAuditedFinancialStatementsOfAcquiredBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_FirstHoldbackMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_RevenuesExceedingFifteenMillionInTheFirstTwelveMonthPeriodAfterClosingDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_RevenuesExceedingThirtyMillionInTheSecondTwelveMonthPeriodAfterClosingDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_RevenuesExceedingTwentyTwoAndAHalfMillionInTheFirstTwelveMonthPeriodAfterClosingDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_ExtensionOfProductShelfLifeFrom36MonthsTo60MonthsInTheFirstAnniversaryOfClosingDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lmat_ThirdHoldbackMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=lmat_CardiocelProductMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=lmat_VascucelProductMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=lmat_BiologicalPatchBusinessAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 2 - Acquisitions (Details Textual)			3 Months Ended		12 Months Ended
Note 2 - Acquisitions (Details Textual)	Jun. 22, 2020 USD ($)	Oct. 11, 2019 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2021 USD ($)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability					$ (108,000)	$ (674,000)	$ 182,000
Artegraft Inc [Member]
Payments to Acquire Businesses, Gross	$ 72,500,000
Escrow Deposit Disbursements Related to Property Acquisition	$ 7,500,000
Business Combination, Contingent Consideration, Liability, Total			$ 400,000		$ 400,000
Business Acquisition, Purchase Price Allocation, Goodwill Expected Tax Deductible, Period	15 years
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life	12 years 7 months 6 days
Artegraft Inc [Member] \| First Earn-out [Member]
Business Combination, Contingent Consideration, Liability, Total	$ 5,800,000
Business Combination, Contingent Consideration, Unit Sales	20,000
Artegraft Inc [Member] \| Second Earn-out [Member]
Business Combination, Contingent Consideration, Liability, Total	$ 5,800,000
Business Combination, Contingent Consideration, Unit Sales	24,000
Artegraft Inc [Member] \| Third Earn-out [Member]
Business Combination, Contingent Consideration, Liability, Total	$ 5,800,000
Business Combination, Contingent Consideration, Unit Sales	28,800
Artegraft Inc [Member] \| Catch-Up Payment [Member]
Business Combination, Contingent Consideration, Liability, Total	$ 400,000
Business Combination, Contingent Consideration, Minimum Unit Sales in Three Years	58,240
Business Combination, Contingent Consideration, Minimum Unit Sales in Three Years, Percent of Combined Individual Year Targets	(80.00%)
Business Combination, Contingent Consideration, Before Multiplied by Fraction	$ 17,500,000
Business Combination, Contingent Consideration, Denominator, Less Amount Paid	72,800
Artegraft Inc [Member] \| Maximum [Member]
Business Combination, Consideration Transferred, Total	$ 90,000,000.0
CardioCel and VascuCel Biologic Patches [Member]
Payments to Acquire Businesses, Gross		$ 14,200,000
Business Combination, Contingent Consideration, Liability, Total		7,500,000						$ 2,000,000.0
CardioCel and VascuCel Biologic Patches [Member] \| Technology Licenses [Member]
Business Combination, Consideration Transferred, Total		8,000,000.0
CardioCel and VascuCel Biologic Patches [Member] \| Achieving Audited Financial Statements of Acquired Business [Member]
Payments to Acquire Businesses, Gross		300,000
CardioCel and VascuCel Biologic Patches [Member] \| First Holdback [Member]
Business Combination, Contingent Consideration, Liability, Total		700,000
CardioCel and VascuCel Biologic Patches [Member] \| Revenues Exceeding Fifteen Million in the First Twelve Month Period After Closing Date [Member]
Business Combination, Contingent Consideration, Liability, Total		1,200,000
CardioCel and VascuCel Biologic Patches [Member] \| Revenues Exceeding Thirty Million in the Second Twelve Month Period After Closing Date [Member]
Business Combination, Contingent Consideration, Liability, Total		2,500,000
CardioCel and VascuCel Biologic Patches [Member] \| Revenues Exceeding Twenty-Two and a Half Million in the First Twelve Month Period After Closing Date [Member]
Business Combination, Contingent Consideration, Liability, Total		1,200,000
CardioCel and VascuCel Biologic Patches [Member] \| Extension of Product Shelf Life from 36 Months to 60 Months in the First Anniversary of Closing Date [Member]
Business Combination, Contingent Consideration, Liability, Total		500,000
CardioCel and VascuCel Biologic Patches [Member] \| Third Holdback [Member]
Business Combination, Contingent Consideration, Liability, Total		2,000,000.0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability			$ (100,000)	$ (500,000)
CardioCel and VascuCel Biologic Patches [Member] \| Third Holdback [Member] \| CardioCel Product [Member]
Business Combination, Contingent Consideration, Liability, Percent				75.00%
CardioCel and VascuCel Biologic Patches [Member] \| Third Holdback [Member] \| VascuCel Product [Member]
Business Combination, Contingent Consideration, Liability, Percent				25.00%
CardioCel and VascuCel Biologic Patches [Member] \| Maximum [Member] \| Biological Patch Business Assets [Member]
Business Combination, Consideration Transferred, Total		$ 15,300,000