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v2.4.1.9

Mortgage and Loans Payable - Schedule of Consolidated Debt (Detail) (USD $) | Dec. 31, 2014 | Dec. 31, 2013
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Debt Instrument [Line Items] |  |
Total mortgages and loans payable | $ 21,164,881 omex_MortgageAndLoansPayableCurrentAndNonCurrent | $ 22,031,808 omex_MortgageAndLoansPayableCurrentAndNonCurrent
Term Loan [Member] |  |
Debt Instrument [Line Items] |  |
Total mortgages and loans payable | 4,000,000 omex_MortgageAndLoansPayableCurrentAndNonCurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_LoansPayableMember | 5,000,000 omex_MortgageAndLoansPayableCurrentAndNonCurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_LoansPayableMember
Project Term Loans [Member] |  |
Debt Instrument [Line Items] |  |
Total mortgages and loans payable | 15,502,422 omex_MortgageAndLoansPayableCurrentAndNonCurrent / us-gaap_LongtermDebtTypeAxis = omex_ProjectTermLoanMember | 10,000,000 omex_MortgageAndLoansPayableCurrentAndNonCurrent / us-gaap_LongtermDebtTypeAxis = omex_ProjectTermLoanMember
Face Value $8,000,000, 9% Convertible Senior Note Payable [Member] |  |
Debt Instrument [Line Items] |  |
Total mortgages and loans payable |  | 4,039,446 omex_MortgageAndLoansPayableCurrentAndNonCurrent / us-gaap_LongtermDebtTypeAxis = omex_NinePercentConvertibleSeniorNotePayableMember
Mortgages Payable [Member] |  |
Debt Instrument [Line Items] |  |
Total mortgages and loans payable | 1,662,459 omex_MortgageAndLoansPayableCurrentAndNonCurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 1,816,286 omex_MortgageAndLoansPayableCurrentAndNonCurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Face Value $10,000,000, 8% Convertible Senior Note Payable [Member] |  |
Debt Instrument [Line Items] |  |
Total mortgages and loans payable |  | $ 1,176,076 omex_MortgageAndLoansPayableCurrentAndNonCurrent / us-gaap_ShortTermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember

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- Definition Mortgage and loans payable current and non current. + References No definition available. + Details
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Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Balance Type: |
Period Type: |