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v3.23.2

Accrued Expenses (Additional Information) (Details) - USD ($) | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Payables and Accruals [Line Items] |  |
Earnest money deposit | $ 729,991 | $ 657,331
CIC [Member] |  |
Payables and Accruals [Line Items] |  |
Earnest money deposit | $ 450,000 |

X
- Definition Earnest money deposit. + References No definition available. + Details
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Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Payables and accruals. + References No definition available. + Details
Name: | omex_PayablesAndAccrualsLineItems
Namespace Prefix: | omex_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=omex_DeepSeaMineralCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |