Name:	mpx_CommitmentsAndContingenciesLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

This element represents the number of the employees entered into the agreement.

No definition available.

Name:	mpx_NumberOfEmployees
Namespace Prefix:	mpx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

This element represents the percentage of profits which used to calculate the monthly payment to each of the employees.

No definition available.

Name:	mpx_PercentageOfMonthlyPaymentOfProfits
Namespace Prefix:	mpx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent.

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Name:	us-gaap_DeferredTaxLiabilitiesNoncurrent
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Name:	us-gaap_OperatingLeasesRentExpenseNet
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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