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v3.25.1

Accrued Expenses - Additional Information (Detail) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Earnest Money Deposit | $ 450,000 | $ 450,000
CIC [Member] |  |
Earnest Money Deposit | $ 500,000 |

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

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