XML 126 R101.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Gain on Silver Fixed Price Swap - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended | 1 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2014 | Oct. 31, 2013 oz | Nov. 30, 2013 oz | Sep. 30, 2014 Contract
Fixed Price Swap Hedge [Member] |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Number of contracts entered |  |  |  |  | 2 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = omex_FixedPriceSwapMember
Weight of troy ounce difference multiplied description |  | If the average silver price was less than the fixed price, we would receive the difference multiplied by the 250,000 troy ounces. If the average silver price was greater than the fixed price, we would owe the difference multiplied by the 250,000 troy ounces. |  |  |
Combined gain from contract | $ 1,206,350 us-gaap_DerivativeGainOnDerivative / us-gaap_DerivativeInstrumentRiskAxis = omex_FixedPriceSwapMember |  |  |  |
Fixed Price Swap First Contract [Member] |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Weight of troy ounce for first contract |  |  | 250,000 omex_WeightOfSilverForWhichContractEnteredToMitigateRisk / us-gaap_DerivativeInstrumentRiskAxis = omex_FixedPriceSwapFirstContractMember |  |
Weight of troy ounce for first contract price per share |  |  | 24.40 us-gaap_DerivativeSwapTypeAverageFixedPrice / us-gaap_DerivativeInstrumentRiskAxis = omex_FixedPriceSwapFirstContractMember |  |
Fixed Price Swap Second Contract [Member] |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |
Weight of troy ounce for first contract |  |  |  | 250,000 omex_WeightOfSilverForWhichContractEnteredToMitigateRisk / us-gaap_DerivativeInstrumentRiskAxis = omex_FixedPriceSwapSecondContractMember |
Weight of troy ounce for first contract price per share |  |  |  | 23.10 us-gaap_DerivativeSwapTypeAverageFixedPrice / us-gaap_DerivativeInstrumentRiskAxis = omex_FixedPriceSwapSecondContractMember |

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- Definition Amount of increase in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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- Definition The number of derivative instruments of a particular group held by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959 + Details
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- Definition Average fixed price related to the group of price risk swap derivatives. + References No definition available. + Details
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