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ACQUISITIONS (Details Narrative) (USD $)
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3 Months Ended | |||
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Mar. 31, 2015
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Dec. 31, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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| Cash | $ 9,477,969us-gaap_Cash | $ 5,082,569us-gaap_Cash | $ 5,410,628us-gaap_Cash | $ 3,610,262us-gaap_Cash |
| Clouding Corp [Member] | ||||
| Cash |
1,400,000us-gaap_Cash / us-gaap_MajorCustomersAxis = MARA_CloudingCorpMember |
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| Stock price |
$ 11.24us-gaap_BusinessAcquisitionSharePrice / us-gaap_MajorCustomersAxis = MARA_CloudingCorpMember |
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| Selene Communication Technologies [Member] | ||||
| Stock price |
$ 9.80us-gaap_BusinessAcquisitionSharePrice / us-gaap_MajorCustomersAxis = MARA_SeleneCommunicationTechnologiesMember |
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| IP Liquidity [Member] | ||||
| Promissory note issued |
2,375,000us-gaap_NotesIssued1 / us-gaap_MajorCustomersAxis = MARA_IPLiquidityMember |
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| Contingent note maximum amount |
2,850,000us-gaap_IncreaseDecreaseInNotesPayableCurrent / us-gaap_MajorCustomersAxis = MARA_IPLiquidityMember |
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| Payment agreement, unmet |
249,375us-gaap_DueToRelatedPartiesCurrent / us-gaap_MajorCustomersAxis = MARA_IPLiquidityMember |
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| Promissory note, current balance |
2,850,000us-gaap_NotesPayableCurrent / us-gaap_MajorCustomersAxis = MARA_IPLiquidityMember |
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| Consideration paid |
6,653,078us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / us-gaap_MajorCustomersAxis = MARA_IPLiquidityMember |
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| Clouding Corp [Member] | ||||
| Promissory note issued |
1,000,000us-gaap_NotesIssued1 / us-gaap_BusinessAcquisitionAxis = MARA_CloudingCorpMember |
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| Restricted stock issued, shares |
25,000us-gaap_RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings / us-gaap_BusinessAcquisitionAxis = MARA_CloudingCorpMember |
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| Restricted stock issued, value |
281,000us-gaap_RestrictedStockValueSharesIssuedNetOfTaxWithholdings / us-gaap_BusinessAcquisitionAxis = MARA_CloudingCorpMember |
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| Recoveries revenue payable |
50.00%us-gaap_RelatedPartyTransactionRate / us-gaap_BusinessAcquisitionAxis = MARA_CloudingCorpMember |
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| Fair value of common stock issued |
281,000us-gaap_StockIssuedDuringPeriodValueAcquisitions / us-gaap_BusinessAcquisitionAxis = MARA_CloudingCorpMember |
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| Earn out liability booked |
2,148,000us-gaap_NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1 / us-gaap_BusinessAcquisitionAxis = MARA_CloudingCorpMember |
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| Selene Communication Technologies [Member] | ||||
| Fair value of common stock issued |
980,000us-gaap_StockIssuedDuringPeriodValueAcquisitions / us-gaap_BusinessAcquisitionAxis = MARA_SeleneCommunicationTechnologiesMember |
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| Sarif Biomedical [Member] | ||||
| Promissory note issued |
250,000us-gaap_NotesIssued1 / us-gaap_BusinessAcquisitionAxis = MARA_SarifBiomedical1Member |
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| Contingent note maximum amount |
300,000us-gaap_IncreaseDecreaseInNotesPayableCurrent / us-gaap_BusinessAcquisitionAxis = MARA_SarifBiomedical1Member |
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| Payment agreement, unmet |
26,250us-gaap_DueToRelatedPartiesCurrent / us-gaap_BusinessAcquisitionAxis = MARA_SarifBiomedical1Member |
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| Consideration paid |
552,024us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / us-gaap_BusinessAcquisitionAxis = MARA_SarifBiomedical1Member |
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| CyberFone [Member] | ||||
| Impairment loss |
2,144,488us-gaap_GoodwillImpairmentLoss / us-gaap_BusinessAcquisitionAxis = MARA_CyberFoneMember |
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| Fair value of common stock issued |
2,280,000us-gaap_StockIssuedDuringPeriodValueAcquisitions / us-gaap_BusinessAcquisitionAxis = MARA_CyberFoneMember |
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| Dynamic Advances [Member] | ||||
| Promissory note issued |
2,375,000us-gaap_NotesIssued1 / us-gaap_BusinessAcquisitionAxis = MARA_DynamicAdvancesMember |
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| Contingent note maximum amount |
2,850,000us-gaap_IncreaseDecreaseInNotesPayableCurrent / us-gaap_BusinessAcquisitionAxis = MARA_DynamicAdvancesMember |
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| Payment agreement, unmet |
249,375us-gaap_DueToRelatedPartiesCurrent / us-gaap_BusinessAcquisitionAxis = MARA_DynamicAdvancesMember |
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| Promissory note, current balance |
2,850,000us-gaap_NotesPayableCurrent / us-gaap_BusinessAcquisitionAxis = MARA_DynamicAdvancesMember |
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| Consideration paid |
6,653,078us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / us-gaap_BusinessAcquisitionAxis = MARA_DynamicAdvancesMember |
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| Medtech Entities [Member] | ||||
| Promissory note issued |
9,000,000us-gaap_NotesIssued1 / us-gaap_BusinessAcquisitionAxis = MARA_MedtechEntitiesMember |
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| TLI Communications LLC [Member] | ||||
| Recoveries revenue payable |
50.00%us-gaap_RelatedPartyTransactionRate / us-gaap_BusinessAcquisitionAxis = MARA_TLICommunicationsLLCMember |
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| Fair value of common stock issued |
$ 818,000us-gaap_StockIssuedDuringPeriodValueAcquisitions / us-gaap_BusinessAcquisitionAxis = MARA_TLICommunicationsLLCMember |
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| Stock price |
$ 13.63us-gaap_BusinessAcquisitionSharePrice / us-gaap_BusinessAcquisitionAxis = MARA_TLICommunicationsLLCMember |
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| Common stock issued |
60,000us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued / us-gaap_BusinessAcquisitionAxis = MARA_TLICommunicationsLLCMember |
| X | ||||||||||
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- Definition
Number of shares of equity interests issued or issuable to acquire entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination. No definition available.
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| X | ||||||||||
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in current portion (due within one year or one business cycle) of obligations evidenced by formal promissory notes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of liabilities that an entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition that are not presented as a separate disclosure or otherwise listed in the existing taxonomy. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The fair value of notes issued in noncash investing and financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties. No definition available.
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| X | ||||||||||
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- Definition
The number of restricted shares issued as compensation, net of shares for the payment of withholding taxes. This element is to be used only if shares are used in lieu of cash to satisfy all or a portion of withholding taxes. No definition available.
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| X | ||||||||||
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- Definition
The value of restricted shares issued as compensation, net of the value of shares for the payment of withholding taxes. This element is to be used only if shares are used in lieu of cash to satisfy all or a portion of withholding taxes. No definition available.
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- Definition
Value of stock issued pursuant to acquisitions during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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