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Schedule of Progress of Converting Proved Undeveloped Reserves (Details) | 12 Months Ended
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Mar. 31, 2022 USD ($) Boe
Extractive Industries [Abstract] |
PUDs, beginning of year | Boe | 484,362
PUDs, beginning of year, Future Development Costs | $ | $ 3,015,174
Revision of previous estimates | Boe | (73,798)
Revision of previous estimates, Future Development Costs | $ | $ (225,915)
Sales of reserves | Boe |
Sales of reserves, Future Development Costs | $ |
Conversions to PD reserves | Boe | (87,915)
Conversions to PD reserves, Future Development Costs | $ | $ (771,288)
Additional PUDs added | Boe | 267,610
Additional PUDs added, Future Development Costs | $ | $ 4,494,985
PUDs, end of year | Boe | 590,259
PUDs, end of year, Future Development Costs | $ | $ 6,512,956

X
- Definition Additional PUDs added. + References No definition available. + Details
Name: | MXC_AdditionalProvedUndevelopedReserveAdded
Namespace Prefix: | MXC_
Data Type: | dtr-types:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Additional PUDs added, Future Development Costs + References No definition available. + Details
Name: | MXC_AdditionalPudsAddedFutureDevelopmentCosts
Namespace Prefix: | MXC_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Conversions to PD reserves, future development costs. + References No definition available. + Details
Name: | MXC_ConversionsToProvedDevelopedReservesFutureDevelopmentCosts
Namespace Prefix: | MXC_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition PUDs, beginning of year. + References No definition available. + Details
Name: | MXC_ProvedUndevelopedReserveBeginning
Namespace Prefix: | MXC_
Data Type: | dtr-types:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Conversions to PD reserves. + References No definition available. + Details
Name: | MXC_ProvedUndevelopedReserveConversionsToProvedDevelopedReserves
Namespace Prefix: | MXC_
Data Type: | dtr-types:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revision of previous estimates. + References No definition available. + Details
Name: | MXC_ProvedUndevelopedReserveRevisionOfPreviousEstimates
Namespace Prefix: | MXC_
Data Type: | dtr-types:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sales of reserves. + References No definition available. + Details
Name: | MXC_ProvedUndevelopedReserveSalesOfReserves
Namespace Prefix: | MXC_
Data Type: | dtr-types:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition PUDs, end of year. + References No definition available. + Details
Name: | MXC_ProvedUndevelopedReservesEndOfYear
Namespace Prefix: | MXC_
Data Type: | dtr-types:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition PUDs, future development costs. + References No definition available. + Details
Name: | MXC_ProvedUndevelopedReservesFutureDevelopmentCosts
Namespace Prefix: | MXC_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Revision of previous estimates, Future Development Costs + References No definition available. + Details
Name: | MXC_RevisionOfPreviousEstimatesFutureDevelopmentCosts
Namespace Prefix: | MXC_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sales of reserves, Future Development Costs. + References No definition available. + Details
Name: | MXC_SalesOfReservesFutureDevelopmentCosts
Namespace Prefix: | MXC_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_ExtractiveIndustriesAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration