XML 88 R60.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Derivative Financial Instruments - Changes in Fair Values of Derivative Liabilities (Detail) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Derivative [Line Items] |  |  |  |
Derivative income (expense) | $ 640,153 | $ 4,801,862 | $ 1,342,991 | $ 1,712,030
Redemptions of Senior Convertible Notes | 230,300 |  | 863,651 |
Total derivative income (expense) | 870,453 | 4,801,862 | 2,206,642 | 1,712,030
Senior Convertible Notes [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative income (expense) | 202,034 | 2,274,033 | 244,303 | 1,174,205
Series G Convertible Preferred Stock [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative income (expense) |  | 286,335 |  | 158,711
Warrant Derivatives [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative income (expense) | $ 438,119 | $ 2,241,494 | $ 1,098,688 | $ 379,114

X
- Definition Derivative income expense net. + References No definition available. + Details
Name: | omex_DerivativeIncomeExpenseNet
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Redemptions of senior convertible notes. + References No definition available. + Details
Name: | omex_RedemptionsOfSeniorConvertibleNotes
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase (decrease) 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=7476318&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=7476318&loc=SL5624171-113959 + Details
Name: | us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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