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Basis of Presentation and Significant Accounting Policies (Details Narrative)	6 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Cost method investments, percentage description	The Company accounts for investments of less than 1% in limited liability companies at cost

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- Definition

Cost Method Investments Percentage Dscription.

+ References

No definition available.

+ Details

Name:	MXC_CostMethodInvestmentsPercentageDescription
Namespace Prefix:	MXC_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration