XML 59 R46.htm IDEA: XBRL DOCUMENT
v3.19.1

Loans Payable - Schedule of Allocation of Cash Proceeds to Derivative Components at their Fair Values - Additional Tranches (Detail) - Promissory Note [Member] - Epsilon Acquisitions, LLC [Member] | Mar. 31, 2019 USD ($)
--- | ---
Third Tranche [Member] |
Debt Instrument [Line Items] |
Cash proceeds | $ 1,000,000
Third Tranche [Member] | Beneficial Conversion Feature ("BCF") [Member] |
Debt Instrument [Line Items] |
Cash proceeds | 18,204
Third Tranche [Member] | 2014 Convertible Promissory Notes [Member] |
Debt Instrument [Line Items] |
Cash proceeds | 981,796
Fourth Tranche [Member] |
Debt Instrument [Line Items] |
Cash proceeds | 1,000,000
Fourth Tranche [Member] | Beneficial Conversion Feature ("BCF") [Member] |
Debt Instrument [Line Items] |
Cash proceeds | 60,065
Fourth Tranche [Member] | 2014 Convertible Promissory Notes [Member] |
Debt Instrument [Line Items] |
Cash proceeds | 939,935
Fifth Tranche [Member] |
Debt Instrument [Line Items] |
Cash proceeds | 1,000,000
Fifth Tranche [Member] | 2014 Convertible Promissory Notes [Member] |
Debt Instrument [Line Items] |
Cash proceeds | $ 1,000,000

X
- 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://fasb.org/us-gaap/role/ref/legacyRef -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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(13)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_ConvertibleNotesPayable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=omex_TrancheThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=omex_PromissoryNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=omex_EpsilonAcquisitionsLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=omex_BeneficialConversionFeatureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=omex_TwoThousandAndFourteenConvertiblePromissoryNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=omex_TrancheFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=omex_TrancheFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |