STOCKHOLDERS' EQUITY (Details Narrative) (USD $)
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0 Months Ended |
3 Months Ended |
12 Months Ended |
1 Months Ended |
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Jun. 24, 2013
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Dec. 31, 2014
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Dec. 31, 2014
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Dec. 31, 2013
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Sep. 30, 2014
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May 30, 2014
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Apr. 30, 2014
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Dec. 07, 2011
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Dec. 06, 2011
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Common stock, shares authorized |
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200,000,000us-gaap_CommonStockSharesAuthorized
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200,000,000us-gaap_CommonStockSharesAuthorized
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200,000,000us-gaap_CommonStockSharesAuthorized
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200,000,000us-gaap_CommonStockSharesAuthorized
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75,000,000us-gaap_CommonStockSharesAuthorized
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Common stock, par value |
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$ 0.0001us-gaap_CommonStockParOrStatedValuePerShare
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$ 0.0001us-gaap_CommonStockParOrStatedValuePerShare
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$ 0.0001us-gaap_CommonStockParOrStatedValuePerShare
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$ 0.0001us-gaap_CommonStockParOrStatedValuePerShare
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$ 0.001us-gaap_CommonStockParOrStatedValuePerShare
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Preferred stock, shares authorized |
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50,000,000us-gaap_PreferredStockSharesAuthorized
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50,000,000us-gaap_PreferredStockSharesAuthorized
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50,000,000us-gaap_PreferredStockSharesAuthorized
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50,000,000us-gaap_PreferredStockSharesAuthorized
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Preferred stock, par value |
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$ 0.0001us-gaap_PreferredStockParOrStatedValuePerShare
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$ 0.0001us-gaap_PreferredStockParOrStatedValuePerShare
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$ 0.0001us-gaap_PreferredStockParOrStatedValuePerShare
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$ 0.0001us-gaap_PreferredStockParOrStatedValuePerShare
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Reverse stock split ratio |
one (1) for thirteen (13) basis
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Warrants issued |
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770,788us-gaap_NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationWarrantsIssued1
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Warrants Exercised |
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214,846us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
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Warrants forfeited |
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46,154us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations
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Stock based compensation expense, warrants |
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$ 41,575MARA_StockBasedCompensationExpenseWarrants
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Proceeds from share issuance |
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6,388,266us-gaap_ProceedsFromIssuanceOfCommonStock
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5,777,596us-gaap_ProceedsFromIssuanceOfCommonStock
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Stock-based prepaid expense |
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(400,471)us-gaap_IncreaseDecreaseInPrepaidExpense
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29,571us-gaap_IncreaseDecreaseInPrepaidExpense
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Unrecognized compensation expense - warrants |
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3,465us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
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3,465us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
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Warrants |
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1,926,308us-gaap_ClassOfWarrantOrRightOutstanding
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1,926,308us-gaap_ClassOfWarrantOrRightOutstanding
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Preferred Stock [Member] |
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Shares issued, new |
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200,000us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
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782,000us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
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2,047,158us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
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Value of shares issued |
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2,807,380us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
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Warrants issued |
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511,790us-gaap_NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationWarrantsIssued1 / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
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Warrant Exercise Price |
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$ 3.75invest_InvestmentWarrantsExercisePrice / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
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Common Stock 1 [Member] |
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Shares issued, new |
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4,808us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock1Member
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Proceeds from share issuance |
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25,000us-gaap_ProceedsFromIssuanceOfCommonStock / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock1Member
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Grant date fair value (per share) |
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$ 3.90us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock1Member
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Common Stock 2 [Member] |
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Shares issued, new |
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61,538us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock2Member
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Common Stock 3 [Member] |
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Shares issued, new |
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923,076us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock3Member
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Value of shares issued |
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2,280,000us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock3Member
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Grant date fair value (per share) |
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$ 2.47us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock3Member
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Common Stock 4 [Member] |
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Shares issued, new |
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46,154us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock4Member
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Grant date fair value (per share) |
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$ 2.925us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock4Member
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Common Stock 5 [Member] |
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Shares issued, new |
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1,999,996us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock5Member
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Proceeds from share issuance |
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5,200,000us-gaap_ProceedsFromIssuanceOfCommonStock / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock5Member
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Placement agent fees |
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170,000us-gaap_PaymentsOfStockIssuanceCosts / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock5Member
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Placement agent fees, previously paid as a retainer |
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30,000us-gaap_PaymentOfFinancingAndStockIssuanceCosts / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock5Member
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Common Stock 6 [Member] |
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Shares issued, new |
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23,076us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock6Member
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Value of shares issued |
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58,000us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock6Member
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Grant date fair value (per share) |
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$ 2.515us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock6Member
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Common Stock 7 [Member] |
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Shares issued, new |
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192,308us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock7Member
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Value of shares issued |
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506,250us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock7Member
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Grant date fair value (per share) |
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$ 2.635us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock7Member
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Stock-based consulting expense |
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506,250us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock7Member
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Common Stock 8 [Member] |
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Shares issued, new |
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134,616us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock8Member
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Value of shares issued |
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306,251us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock8Member
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Grant date fair value (per share) |
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$ 2.275us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock8Member
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Stock-based prepaid expense |
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306,256us-gaap_IncreaseDecreaseInPrepaidExpense / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock8Member
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Common Stock 9 [Member] |
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Shares issued, new |
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8,760us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock9Member
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Value of shares issued |
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30,000us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock9Member
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Grant date fair value (per share) |
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$ 3.425us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock9Member
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Common Stock 10 [Member] |
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Shares issued, new |
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11,392us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock10Member
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Value of shares issued |
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29,620us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock10Member
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Warrant Exercise Price |
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$ 3.25invest_InvestmentWarrantsExercisePrice / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock10Member
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Grant date fair value (per share) |
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$ 2.60us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock10Member
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Common Stock 11 [Member] |
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Shares issued, new |
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307,692us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock11Member
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Proceeds from share issuance |
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800,000us-gaap_ProceedsFromIssuanceOfCommonStock / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock11Member
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Warrant Exercise Price |
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$ 3.25invest_InvestmentWarrantsExercisePrice / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock11Member
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Placement agent fees |
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35,029us-gaap_PaymentsOfStockIssuanceCosts / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock11Member
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Placement agent fees, previously paid as a retainer |
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42,375us-gaap_PaymentOfFinancingAndStockIssuanceCosts / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock11Member
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Common Stock 12 [Member] |
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Shares issued, new |
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60,000us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock12Member
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Value of shares issued |
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818,000us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock12Member
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Grant date fair value (per share) |
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$ 13.63us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock12Member
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Common Stock 13 [Member] |
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Shares issued, new |
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300,000us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock13Member
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Value of shares issued |
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718,500us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock13Member
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Grant date fair value (per share) |
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$ 2.39us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock13Member
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Common Stock 14 [Member] |
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Shares issued, new |
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9,616us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock14Member
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Proceeds from share issuance |
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25,000us-gaap_ProceedsFromIssuanceOfCommonStock / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock14Member
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Common Stock 15 [Member] |
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Shares issued, new |
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48,078us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock15Member
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Common Stock 16 [Member] |
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Shares issued, new |
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200,000us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock16Member
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Value of shares issued |
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980,000us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock16Member
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Grant date fair value (per share) |
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$ 4.90us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock16Member
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Common Stock 17 [Member] |
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Shares issued, new |
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26,722us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock17Member
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Common Stock 18 [Member] |
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Shares issued, new |
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6,178us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock18Member
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Value of shares issued |
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45,995us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock18Member
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Common Stock 19 [Member] |
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Shares issued, new |
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50,000us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock19Member
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Value of shares issued |
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$ 28,100us-gaap_StockIssuedDuringPeriodValueIssuedForNoncashConsiderations / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock19Member
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Grant date fair value (per share) |
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$ 5.62us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock19Member
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Common Stock 20 [Member] |
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Shares issued, new |
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84,652us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock20Member
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Common Stock 21 [Member] |
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Shares issued, new |
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29,230us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = MARA_CommonStock21Member
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