XML 105 R102.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Subsequent Events - Additional Information (Detail) (USD $) | 0 Months Ended |
--- | --- | ---
Mar. 11, 2015 | Dec. 31, 2014
Subsequent Event [Line Items] |  |
Shares issued to investor, Value |  |
Subsequent Event [Member] | Penelope Mining LLC [Member] |  |
Subsequent Event [Line Items] |  |
Number of trading days | 20 days |
Convertible preferred stock redemption period at option of issuer | 3 years |
Subsequent Event [Member] | Penelope Mining LLC [Member] | Series AA-1 convertible preferred stock. |  |
Subsequent Event [Line Items] |  |
Shares issued to investor, Value | 101,100,000 us-gaap_PreferredStockValue / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = omex_PenelopeMiningLlcMember / us-gaap_StatementClassOfStockAxis = omex_SeriesAaOneConvertiblePreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent Event [Member] | Maximum [Member] | Minera Del Norte S.A. de C.V. [Member] |  |
Subsequent Event [Line Items] |  |
Loan | 14,750,000 us-gaap_DebtInstrumentCarryingAmount / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = omex_MineraDelNorteMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent Event [Member] | Maximum [Member] | Penelope Mining LLC [Member] | Series AA-2 Convertible Preferred Stock [Member] |  |
Subsequent Event [Line Items] |  |
Shares issued to investor, Value | 43,300,000 us-gaap_PreferredStockValue / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = omex_PenelopeMiningLlcMember / us-gaap_StatementClassOfStockAxis = omex_SeriesAaTwoConvertiblePreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent Event [Member] | Minimum [Member] | Penelope Mining LLC [Member] |  |
Subsequent Event [Line Items] |  |
Closing price of common stock | 1.26 us-gaap_DebtInstrumentConvertibleStockPriceTrigger / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = omex_PenelopeMiningLlcMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |

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- Definition Convertible preferred stock redeemable period at option of issuer. + References No definition available. + Details
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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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- Definition Price of the entity's common stock which would be required to be attained for the conversion feature embedded in the debt instrument to become effective. + References No definition available. + Details
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- Definition Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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- Details
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