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Note 8 - Stockholders' Equity (Details Textual) - The FY24 PSUs [Member] - Eligible Employees [Member] shares in Thousands	9 Months Ended
	Dec. 31, 2023 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | shares	32
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 132.29
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Earned, Maximum Adjustment Percentage	20.00%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award Number of Shares Issued Upon Vesting, Percentage	0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award Number of Shares Issued Upon Vesting, Percentage	200.00%

X

- Definition

Maximum adjustment percentage for number of shares earned under share=based compensation arrangement.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of shares will be issued upon vesting.

+ References

No definition available.

+ Details

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Namespace Prefix:	mlab_
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X

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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X

- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

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X

- Details

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X

- Details

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X

- Details

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