XML 33 R62.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Derivative Financial Instruments - Significant Assumptions Utilized in Binomial Lattice Process (Detail) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014
Derivative [Line Items] |  |  |
Quoted market price on valuation date | 2.50 omex_FairValueAssumptionsQuotedPrice |  |
Level 3 [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Derivative [Line Items] |  |  |
Linked common shares | 1,562,500 omex_FairValueAssumptionsLinkedCommonShares / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 1,562,500 omex_FairValueAssumptionsLinkedCommonShares / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 1,562,500 omex_FairValueAssumptionsLinkedCommonShares / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Warrant Group 1 [Member] | Level 3 [Member] | Minimum [Member] |  |  |
Derivative [Line Items] |  |  |
Range of market volatilities | 15.20%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupOneMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Risk free rates using zero coupon US Treasury Security rates | 0.05%omex_RiskFreeRatesUsingZeroCouponCountryTreasurySecurityRangeOfRates / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupOneMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Warrant Group 1 [Member] | Level 3 [Member] | Maximum [Member] |  |  |
Derivative [Line Items] |  |  |
Range of market volatilities | 29.20%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupOneMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Warrant Group 1 [Member] | Level 3 [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Derivative [Line Items] |  |  |
Linked common shares | 525,000 omex_FairValueAssumptionsLinkedCommonShares / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupOneMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  |
Quoted market price on valuation date | 2.29 omex_FairValueAssumptionsQuotedPrice / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupOneMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  |
Contractual exercise rate | 2.3793 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupOneMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  |
Term (years) | 15 days |  |
Warrant Group 2 [Member] | Level 3 [Member] | Minimum [Member] |  |  |
Derivative [Line Items] |  |  |
Range of market volatilities | 69.70%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember | 47.90%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember | 59.90%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember
Risk free rates using zero coupon US Treasury Security rates | 0.03%omex_RiskFreeRatesUsingZeroCouponCountryTreasurySecurityRangeOfRates / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember | 0.05%omex_RiskFreeRatesUsingZeroCouponCountryTreasurySecurityRangeOfRates / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember | 0.04%omex_RiskFreeRatesUsingZeroCouponCountryTreasurySecurityRangeOfRates / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember
Warrant Group 2 [Member] | Level 3 [Member] | Maximum [Member] |  |  |
Derivative [Line Items] |  |  |
Range of market volatilities | 109.10%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember | 66.10%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember | 73.90%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember
Risk free rates using zero coupon US Treasury Security rates | 0.56%omex_RiskFreeRatesUsingZeroCouponCountryTreasurySecurityRangeOfRates / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember | 0.90%omex_RiskFreeRatesUsingZeroCouponCountryTreasurySecurityRangeOfRates / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember | 0.67%omex_RiskFreeRatesUsingZeroCouponCountryTreasurySecurityRangeOfRates / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember
Warrant Group 2 [Member] | Level 3 [Member] | Derivative Financial Instruments, Assets [Member] |  |  |
Derivative [Line Items] |  |  |
Linked common shares | 1,562,500 omex_FairValueAssumptionsLinkedCommonShares / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 1,562,500 omex_FairValueAssumptionsLinkedCommonShares / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 1,562,500 omex_FairValueAssumptionsLinkedCommonShares / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Quoted market price on valuation date | 0.70 omex_FairValueAssumptionsQuotedPrice / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 2.29 omex_FairValueAssumptionsQuotedPrice / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 0.93 omex_FairValueAssumptionsQuotedPrice / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Contractual exercise rate | 3.60 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 3.60 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 3.60 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Term (years) | 2 years 1 month 10 days | 3 years 1 month 10 days | 2 years 4 months 24 days
Custom lattice variable: Probability of exercisability (434,027 linked common shares) | 0.00%us-gaap_FairValueInputsProbabilityOfDefault / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 0.00%us-gaap_FairValueInputsProbabilityOfDefault / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 0.00%us-gaap_FairValueInputsProbabilityOfDefault / us-gaap_ClassOfWarrantOrRightAxis = omex_WarrantGroupTwoMember / us-gaap_FairValueByAssetClassAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member

X
- Definition Fair Value Assumptions Linked Common Shares + References No definition available. + Details
Name: | omex_FairValueAssumptionsLinkedCommonShares
Namespace Prefix: | omex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value assumptions quoted price. + References No definition available. + Details
Name: | omex_FairValueAssumptionsQuotedPrice
Namespace Prefix: | omex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Risk free rates using zero coupon country treasury security range of rates. + References No definition available. + Details
Name: | omex_RiskFreeRatesUsingZeroCouponCountryTreasurySecurityRangeOfRates
Namespace Prefix: | omex_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DerivativeTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Agreed upon price for the exchange of the underlying asset. + 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=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssumptionsExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. + 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=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssumptionsExpectedVolatilityRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value. + 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 (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueInputsProbabilityOfDefault
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=omex_WarrantGroupOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=omex_WarrantGroupTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |