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Deferred Revenue (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Deferred Revenue (Textual) [Abstract]
Marine Services Obligations	$ 3,545,140	$ 3,545,140

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- Details

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- Definition

Marine services obligations deferred revenue.

+ References

No definition available.

+ Details

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Namespace Prefix:	omex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration