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Commitments and Contingencies (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Apr. 06, 2012
Commitments and Contingencies (Textual) [Abstract] |  |
Charter Agreement Period | 90 days |
Fees and costs |  | $ 95,000
Third Party [Member] |  |
Gain Contingencies [Line Items] |  |
Project financing | 41,000,000 |

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- Definition Charter agreement period. + References No definition available. + Details
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Namespace Prefix: | omex_
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- Details
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- Definition Project financing. + References No definition available. + Details
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Period Type: | duration

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- Details
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- Definition Amount of consideration the entity has agreed to pay to settle a legal matter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14557-108349 + Details
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Period Type: | instant