XML 104 R64.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Investments in Unconsolidated Entity - Additional Information (Detail) (USD $) | 1 Months Ended | 12 Months Ended |  |  | 1 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 6 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2010 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 Face Value $10,000,000, 8% Convertible Senior Note Payable [Member] | Sep. 30, 2013 Face Value $10,000,000, 8% Convertible Senior Note Payable [Member] | Dec. 31, 2009 SMM Project, LLC [Member] Unit Sqkms | Apr. 30, 2010 Dorado Ocean Resources, Ltd. [Member] | Dec. 31, 2011 Dorado Ocean Resources, Ltd. [Member] | Dec. 31, 2013 Dorado Ocean Resources, Ltd. [Member] | Dec. 31, 2013 Neptune Minerals, Inc. [Member] | Dec. 31, 2011 Neptune Minerals, Inc. [Member] | Dec. 31, 2010 Neptune Minerals, Inc. [Member] | Jun. 30, 2012 Chatham Rock Phosphate, Ltd. [Member]
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Book value of investment |  |  |  |  |  |  | $ 500,000 |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  | 25.00% | 41.25% |  |  | 29.60% |  |  |
Mineral exploration area |  |  |  |  |  |  | 150,000 |  |  |  |  |  |  |
Number of membership units |  |  |  |  |  |  | 5 |  |  |  |  |  |  |
Common stock, shares issued |  | 83,882,577 | 75,416,203 |  |  |  |  | 450 |  |  |  |  |  |
Acquisition of additional shares |  |  |  |  |  |  |  | 1,200 |  |  |  | 2,066,600 |  |
Fair value of investment |  |  |  |  |  |  |  | 2,000,000 |  |  |  |  |  |
Investment repayment period | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |
Marine service account receivables | 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued per each share exchanged |  |  |  |  |  |  |  |  |  |  |  | 1,000 |  |
Shares received from exchange |  |  |  |  |  |  |  |  |  |  |  | 1,650,000 |  |
Shares owned |  |  |  |  |  |  |  |  | 1,650 |  |  |  |  |
Net share position in NMI |  |  |  |  |  |  |  |  |  |  | 6,184,976 |  |  |
Accounts receivable transferred between related parties |  |  |  | 8,227,675 |  |  |  |  |  |  |  |  |  |
Accounts receivable converted to common shares, amount |  | 8,608,694 | 4,262,528 | 2,500,000 |  |  |  |  |  |  |  |  |  |
Converted common shares received |  |  |  | 2,500,000 |  |  |  |  |  |  |  |  |  |
Value of shares |  |  |  |  |  |  |  |  |  |  |  | $ 1.00 |  |
Receivable reserve |  |  |  |  |  |  |  |  |  |  |  |  | 8,227,675 |
Settlement of accounts receivable, share |  |  |  | 2,500,000 |  |  |  |  |  |  |  |  |  |
Loss from unconsolidated entity |  |  |  |  |  |  |  |  |  | 19,000,000 |  |  |  |
Investment at a carrying value |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Convertible notes |  |  |  |  |  | 500,000 |  |  |  |  |  |  |  |
Convertible notes Interest rate |  |  |  |  | 6.00% |  |  |  |  |  |  |  |  |
Convertible notes maturity date |  |  |  |  | Apr. 26, 2014 |  |  |  |  |  |  |  |  |
Conversion price per share related to option elected |  |  |  |  | $ 20.00 |  |  |  |  |  |  |  |  |
Conversion share price per share |  |  |  |  | $ 12.00 |  |  |  |  |  |  |  |  |
Deep sea mining exploratory services |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,680,000
Shares received from CRP |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,320,348
Equity stake in CRP |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.50%

X
- Definition Accounts receivables transferred between related parties. + References No definition available. + Details
Name: | omex_AccountsReceivablesTransferredBetweenRelatedParties
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cumulative and outstanding losses. + References No definition available. + Details
Name: | omex_CumulativeAndOutstandingLosses
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt instrument convertible conversion price before maturity. + References No definition available. + Details
Name: | omex_DebtInstrumentConvertibleConversionPriceBeforeMaturity
Namespace Prefix: | omex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt instrument issued face amount. + References No definition available. + Details
Name: | omex_DebtInstrumentIssuedFaceAmount
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Equity method investments number of membership unit. + References No definition available. + Details
Name: | omex_EquityMethodInvestmentsNumberOfMembershipUnit
Namespace Prefix: | omex_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Equity method investments shares acquired. + References No definition available. + Details
Name: | omex_EquityMethodInvestmentsSharesAcquired
Namespace Prefix: | omex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity method investments shares exchange ratio. + References No definition available. + Details
Name: | omex_EquityMethodInvestmentsSharesExchangeRatio
Namespace Prefix: | omex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity method investments shares owned. + References No definition available. + Details
Name: | omex_EquityMethodInvestmentsSharesOwned
Namespace Prefix: | omex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Investment repayment period. + References No definition available. + Details
Name: | omex_InvestmentRepaymentPeriod
Namespace Prefix: | omex_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Marine service account receivables. + References No definition available. + Details
Name: | omex_MarineServiceAccountReceivables
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Mineral exploration area. + References No definition available. + Details
Name: | omex_MineralExplorationArea
Namespace Prefix: | omex_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Mining exploratory service revenue. + References No definition available. + Details
Name: | omex_MiningExploratoryServiceRevenue
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Shares issued in connection with settlement of accounts receivable. + References No definition available. + Details
Name: | omex_SharesIssuedInConnectionWithSettlementOfAccountsReceivable
Namespace Prefix: | omex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Shares received from exchange. + References No definition available. + Details
Name: | omex_SharesReceivedFromExchange
Namespace Prefix: | omex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Shares received from unconsolidated entities. + References No definition available. + Details
Name: | omex_SharesReceivedFromUnconsolidatedEntities
Namespace Prefix: | omex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition For an unclassified balance sheet, amount of receivables arising from transactions with related parties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 3: 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.(a),3) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a -Article 5 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Article 7 + Details
Name: | us-gaap_AccountsReceivableRelatedParties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
Name: | us-gaap_CommonStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_ConversionOfStockSharesConverted1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_DebtConversionConvertedInstrumentAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_DebtConversionConvertedInstrumentSharesIssued1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -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(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of investments accounted under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6903542&loc=d3e32014-111567 + Details
Name: | us-gaap_EquityMethodInvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks of a company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant