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Note 13 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands | Mar. 31, 2023 | Nov. 17, 2022
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Belyntic Acquisition [Member] | Other Long-term Liabilities [Member] |  |
Business Combination, Contingent Consideration, Liability, Noncurrent | $ 1,190 | $ 1,500

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- Definition Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479668/805-30-25-6 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 35 -Paragraph 1 -Subparagraph b -SubTopic 30 -Topic 805 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479613/805-30-35-1 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=mlab_BelynticAcquisitionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_BalanceSheetLocationAxis=mlab_OtherLongtermLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |