XML 15 R54.htm IDEA: XBRL DOCUMENT v2.4.1.9

Note 7 - Stockholders' Equity (Details) - Dividends per Share (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
First Quarter [Member]
Note 7 - Stockholders' Equity (Details) - Dividends per Share [Line Items]
Dividends Paid	$ 0.15us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_FirstQuarterMember	$ 0.14us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_FirstQuarterMember	$ 0.13us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_FirstQuarterMember
Second Quarter [Member]
Note 7 - Stockholders' Equity (Details) - Dividends per Share [Line Items]
Dividends Paid	$ 0.15us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_SecondQuarterMember	$ 0.14us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_SecondQuarterMember	$ 0.13us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_SecondQuarterMember
Third Quarter [Member]
Note 7 - Stockholders' Equity (Details) - Dividends per Share [Line Items]
Dividends Paid	$ 0.16us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_ThirdQuarterMember	$ 0.15us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_ThirdQuarterMember	$ 0.14us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_ThirdQuarterMember
Fourth Quarter [Member]
Note 7 - Stockholders' Equity (Details) - Dividends per Share [Line Items]
Dividends Paid	$ 0.16us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_FourthQuarterMember	$ 0.15us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_FourthQuarterMember	$ 0.14us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = mlab_FourthQuarterMember

X

- Details

Name:	mlab_Note7StockholdersEquityDetailsDividendsperShareLineItems
Namespace Prefix:	mlab_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DividendsAxis=mlab_FirstQuarterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=mlab_FourthQuarterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=mlab_SecondQuarterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=mlab_ThirdQuarterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: