XML 56 R36.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Company Background and Organization (Details) | 6 Months Ended
--- | ---
Sep. 30, 2013 Segment Customer
Company Background and Organization [Abstract] |
Number of major existing customers to which wheel hub products were sold | 1
Number of reportable segments | 1

X
- Definition The number of major existing customers to which the company has sold new wheel hub assemblies and wheel hub bearings during the period. + References No definition available. + Details
Name: | mpaa_NumberOfMajorExistingCustomersToWhichWheelHubProductsWereSold
Namespace Prefix: | mpaa_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration