Quarterly report pursuant to Section 13 or 15(d)

INTANGIBLE ASSETS (Details Narrative)

v2.4.1.9
INTANGIBLE ASSETS (Details Narrative) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Weighted average useful life, website 3 years  
Amortization expense $ 2,598,461us-gaap_AmortizationOfIntangibleAssets $ 453,647us-gaap_AmortizationOfIntangibleAssets
Relay IP [Member]    
Date of patent transaction Apr. 01, 2013  
Patent acquired, value 350,000us-gaap_FairValueOfAssetsAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= MARA_RelayIPMember
 
CyberFone [Member]    
Date of patent transaction Apr. 01, 2013  
Patent acquired, value 1,135,512us-gaap_FairValueOfAssetsAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= MARA_CyberFoneMember
 
Siemens Technology [Member]    
Date of patent transaction Jun. 01, 2013  
Patent acquired, value 1,000,000us-gaap_FairValueOfAssetsAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= MARA_SiemensTechnologyMember
 
14 US patents [Member]    
Date of patent transaction Sep. 01, 2013  
Patent acquired, value 1,100,000us-gaap_FairValueOfAssetsAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= MARA_FourteenUSPatentsMember
 
four patents [Member]    
Date of patent transaction Nov. 01, 2013  
Shares issued for patent acquisition 150,000us-gaap_NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationSharesIssued1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= MARA_FourPatentsMember
 
Patent acquired, value 718,500us-gaap_FairValueOfAssetsAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= MARA_FourPatentsMember
 
Delphi [Member]    
Date of patent transaction Dec. 01, 2013  
Patent acquired, value $ 1,700,000us-gaap_FairValueOfAssetsAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= MARA_DelphiMember
 
Minimum [Member]    
Weighted average useful life, intangbiles 1 year  
Maximum [Member]    
Weighted average useful life, intangbiles 15 years