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Inventory (Tables) | 9 Months Ended
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Sep. 30, 2012
Inventory [Abstract] |
Schedule of inventory | Schedule of inventory

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- Definition Schedule of inventory. + References No definition available. + Details
Name: | omex_ScheduleOfInventoryTableTextBlock
Namespace Prefix: | omex_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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