|
Stock-Based Compensation (Details) (USD $)
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0 Months Ended |
6 Months Ended |
1 Months Ended |
0 Months Ended |
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Aug. 15, 2014
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Dec. 31, 2014
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Dec. 31, 2013
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Oct. 31, 2014
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Oct. 31, 2013
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Oct. 17, 2014
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Oct. 10, 2014
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Jul. 01, 2014
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Jan. 12, 2015
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Jan. 16, 2013
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Jan. 15, 2013
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of stock options exercised |
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494,791us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
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0us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
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| Issuance of common stock (in shares) |
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272,898us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
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| Number of stock options forfeited/canceled |
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2,882,085us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
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0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
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| Value of stock repurchased |
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$ 1,445,000us-gaap_StockRepurchasedDuringPeriodValue
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| Repurchase of common stock |
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566,000us-gaap_PaymentsForRepurchaseOfCommonStock
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0us-gaap_PaymentsForRepurchaseOfCommonStock
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| Shares repurchased during period |
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1,512,500us-gaap_StockRepurchasedDuringPeriodShares
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| Stock issued, in shares |
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1,650,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
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| Expired (in shares) |
|
(12,500)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
|
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
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| Unvested options forfeited |
1,369,585us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares
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| Exercise price of options (in dollars per share) |
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$ 1.80us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
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| Restricted Stock |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Share-based compensation expense (reversal of expense) |
|
(44,000)us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
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| PBOs |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock issued, in shares |
|
1,250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
|
1,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
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| PBOs | CO2-EOR Development Project at Poplar |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance metrics weighted average |
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|
20.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_CO2EORDevelopmentProjectatPoplarMember
|
40.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_CO2EORDevelopmentProjectatPoplarMember
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| PBOs | Preparing Poplar of commercially viable CO2-EOR Development |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance metrics weighted average |
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40.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_PreparingPoplarofCommerciallyViableCO2EORDevelopmentMember
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| PBOs | Progressing UK operations in the Weald Basin |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance metrics weighted average |
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20.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_ProgressingUKOperationsintheWealdBasinMember
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| PBOs | Moving forward with Farnham Dome Project |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance metrics weighted average |
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20.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_MovingForwardwithFarnhamDomeProjectMember
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| PBOs | CO2-EOR Pilot Program at Poplar |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance metrics weighted average |
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|
10.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_CO2EORPilotProgramatPoplarMember
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| PBOs | Sale of Substantially All of the Amadeus Basin Assets |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance metrics weighted average |
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|
20.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_SaleofSubstantiallyAlloftheAmadeusBasinAssetsMember
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| PBOs | Approval of a Farmout Agreement or Participation in Drilling a Well in the Weald Basin |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance metrics weighted average |
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20.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_ApprovalofaFarmoutAgreementorParticipationinDrillingaWellintheWealdBasinMember
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| PBOs | Approval of a Farmout Agreement in the Bonaparte Basin |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance metrics weighted average |
|
|
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|
10.00%mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformanceMetricsWeightedAveragePercentage
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ mpet_PerformanceMetricsWeightedAverageAxis
= mpet_ApprovalofaFarmoutAgreementintheBonaparteBasinMember
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| Employee Stock Option |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
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| Share-based compensation expense (reversal of expense) |
|
(430,000)us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
|
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| Unrecorded expected future compensation expense related to stock option awards |
|
1,800,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
|
1,900,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
|
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| RSUs |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
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| Unvested RSUs forfeited |
100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
|
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| Market Based Options |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
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| Per share closing price (in dollars per share) |
|
$ 2.35mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardsMinimumPerShareClosingPriceforVesting
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
|
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| Number of consecutive trading days |
|
|
|
10mpet_MarketBasedStockOptionsNumberofConsecutiveTradingDays
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
|
|
|
|
|
|
|
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| Stock issued, in shares |
|
400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
|
1,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
|
|
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| Employee Stock Option |
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Maximum number of shares allowed to be issued each year |
|
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|
1,000,000mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityOtherthanOptionsMaximumNumberofSharesAllowedtobeIssuedPerPersonPerYear
/ us-gaap_StatementClassOfStockAxis
= us-gaap_EmployeeStockOptionMember
|
|
| RSUs |
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
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| Maximum number of shares allowed to be issued each year |
|
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|
500,000mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityOtherthanOptionsMaximumNumberofSharesAllowedtobeIssuedPerPersonPerYear
/ us-gaap_StatementClassOfStockAxis
= us-gaap_RestrictedStockUnitsRSUMember
|
|
| 2012 Stock Incentive Plan |
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of shares authorized |
|
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|
5,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
|
| Expiration term |
|
10 years
|
|
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|
|
|
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| 2012 Stock Incentive Plan | PBOs |
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Stock issued, in shares |
|
1,250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
1,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= mpet_PerformanceBasedOptionsMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
|
|
|
|
|
|
|
|
| 2012 Stock Incentive Plan | Market Based Options |
|
|
|
|
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
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| Per share closing price (in dollars per share) |
|
|
|
5.00mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardsMinimumPerShareClosingPriceforVesting
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
|
|
|
|
|
|
|
| Number of consecutive trading days |
|
10mpet_MarketBasedStockOptionsNumberofConsecutiveTradingDays
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
|
90mpet_MarketBasedStockOptionsNumberofConsecutiveTradingDays
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
|
|
|
|
|
|
|
| Median stock price (in dollars per share) |
|
$ 2.35mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardsMedianStockPriceforVesting
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
|
5.00mpet_SharebasedCompensationArrangementbySharebasedPaymentAwardsMedianStockPriceforVesting
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
|
|
|
|
|
|
|
| Median stock price, maintenance period |
|
90 days
|
|
|
|
|
|
|
|
|
|
| Stock issued, in shares |
|
400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
1,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= mpet_StockOptionsMarketBasedMember
/ us-gaap_PlanNameAxis
= mpet_A2012StockIncentivePlanMember
|
|
|
|
|
|
|
|
|
| Vesting period |
|
|
|
3 years
|
|
|
|
|
|
|
|
| 1998 Stock Incentive Plan |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Number of shares authorized |
|
|
|
|
|
|
|
|
|
|
288,435us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
|
| Amount of withholding taxes |
|
14,000us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
|
|
|
|
|
|
|
|
|
|
| Nonvested options outstanding (in shares) |
|
3,131,250us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
|
|
|
|
|
|
|
|
|
|
| 1998 Stock Incentive Plan | Employee Stock Option |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Market based and performance based shares available for future issuance |
|
781,198us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
|
|
|
|
|
|
|
|
|
|
| 2015 Incentive Compensation Program | Restricted Stock |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Share-based compensation expense (reversal of expense) |
|
22,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= mpet_A2015IncentiveCompensationProgramMember
|
|
|
|
|
|
|
|
|
|
| Former executive | 1998 Stock Incentive Plan |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Number of stock options forfeited/canceled |
|
1,512,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
|
|
|
|
|
|
|
| Value of stock repurchased |
|
|
|
|
|
1,400,000us-gaap_StockRepurchasedDuringPeriodValue
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
|
|
|
| Repurchase of common stock |
|
983,000us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
|
462,000us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
|
|
|
| Former executive officer ownership, percent, more than |
|
|
|
|
|
|
5.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
|
|
| Amount of withholding taxes |
|
318,000us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
|
|
|
|
|
|
|
| Shares repurchased during period |
|
|
|
1,512,500us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
250,000us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
|
|
| Former executive | 1998 Stock Incentive Plan | Employee Stock Option |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Shares repurchased during period |
|
|
|
|
|
|
1,512,500us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= mpet_A1998StockIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ExecutiveOfficerMember
|
|
|
|
|
| Non-employee Directors |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Number of stock options exercised |
|
|
|
|
|
|
|
21,875us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_TitleOfIndividualAxis
= mpet_NonemployeeDirectorsMember
|
|
|
|
| Share-based compensation expense (reversal of expense) |
|
249,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_TitleOfIndividualAxis
= mpet_NonemployeeDirectorsMember
|
|
|
|
|
|
|
|
|
|
| Non-employee Directors | Common Stock |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Grants in period |
|
|
|
|
|
|
|
96,330us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_CommonStockMember
/ us-gaap_TitleOfIndividualAxis
= mpet_NonemployeeDirectorsMember
|
|
|
|
| Executives | 2015 Incentive Compensation Program | Restricted Stock |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Grants in period |
|
100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= mpet_A2015IncentiveCompensationProgramMember
/ us-gaap_TitleOfIndividualAxis
= mpet_ExecutiveOfficersMember
|
|
|
|
|
|
|
|
|
|
| Chairman of the Board | 2015 Incentive Compensation Program | Restricted Stock |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Grants in period |
|
50,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= mpet_A2015IncentiveCompensationProgramMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_BoardOfDirectorsChairmanMember
|
|
|
|
|
|
|
|
|
|
| Selling, General and Administrative Expense |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Share-based compensation expense (reversal of expense) |
|
427,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
|
1,100,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
|
|
|
|
|
|
|
|
|
| Selling, General and Administrative Expense | Prior Period Awards |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Share-based compensation expense (reversal of expense) |
|
356,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= mpet_PriorPeriodAwardsMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
|
|
|
|
|
|
|
|
|
|
| Selling, General and Administrative Expense | Employee Stock Option |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Share-based compensation expense (reversal of expense) |
|
$ 274,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
|
|
|
|
|
|
|
|
|
|
| Subsequent Event |
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
| Stock issued, in shares |
|
|
|
|
|
|
|
|
135,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
|
|
|
| Number of employees issued stock options |
|
|
|
|
|
|
|
|
2mpet_NumberOfEmployeesIssuedStockOptions
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
|
|
|
| Exercise price of options (in dollars per share) |
|
|
|
|
|
|
|
|
$ 0.86us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
|
|
|