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Mortgage and Loans Payable - Schedule of Allocation of Cash Proceeds Related to Additional Financing (Detail) (USD $) | Mar. 31, 2015
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Short-term Debt [Line Items] |
Convertible notes payable | $ 9,955,000 us-gaap_ConvertibleNotesPayable
Compound Embedded Derivative [Member] |
Short-term Debt [Line Items] |
Convertible notes payable | 2,989,537 us-gaap_ConvertibleNotesPayable / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_EmbeddedDerivativeFinancialInstrumentsMember
Warrants [Member] |
Short-term Debt [Line Items] |
Convertible notes payable | 2,054,601 us-gaap_ConvertibleNotesPayable / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember
Additional Financing [Member] |
Short-term Debt [Line Items] |
Convertible notes payable | 7,994,482 us-gaap_ConvertibleNotesPayable / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = omex_AdditionalFinancingMember
Additional Financing [Member] | Additional Note [Member] |
Short-term Debt [Line Items] |
Convertible notes payable | 6,339,642 us-gaap_ConvertibleNotesPayable / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = omex_AdditionalFinancingMember / us-gaap_ShortTermDebtTypeAxis = omex_AdditionalNotesMember
Additional Financing [Member] | Compound Embedded Derivative [Member] |
Short-term Debt [Line Items] |
Convertible notes payable | 1,291,298 us-gaap_ConvertibleNotesPayable / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_EmbeddedDerivativeFinancialInstrumentsMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = omex_AdditionalFinancingMember
Additional Financing [Member] | Warrants [Member] |
Short-term Debt [Line Items] |
Convertible notes payable | $ 363,542 us-gaap_ConvertibleNotesPayable / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = omex_AdditionalFinancingMember

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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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- Details
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- Details
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