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Note 15 - Fair Value on a Recurring Basis (Details) $ in Thousands | Mar. 31, 2016 USD ($)
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Fair Value, Inputs, Level 3 [Member] | Contingent Consideration [Member] |
Contingent Consideration | $ 9,037
Contingent Consideration | $ 9,037

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- Definition Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity. + References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureRecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=mlab_ContingentConsiderationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |