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Cover Page - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Mar. 25, 2025
Jun. 28, 2024
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2024    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Entity Registrant Name ODYSSEY MARINE EXPLORATION, INC.    
Entity Central Index Key 0000798528    
Entity Filer Category Non-accelerated Filer    
Current Fiscal Year End Date --12-31    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Entity Interactive Data Current Yes    
Entity Shell Company false    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Trading Symbol OMEX    
Title of 12(b) Security Common Stock    
Security Exchange Name NASDAQ    
Entity Common Stock, Shares Outstanding   29,161,833  
Entity Public Float     $ 93.3
Entity File Number 001-31895    
Document Annual Report true    
Document Transition Report false    
Entity Incorporation, State or Country Code NV    
Entity Tax Identification Number 84-1018684    
Entity Address, Address Line One 205 S. Hoover Blvd    
Entity Address, City or Town Tampa    
Entity Address, Postal Zip Code 33609    
City Area Code 813    
Local Phone Number 876-1776    
Auditor Name GRANT THORNTON LLP    
Auditor Firm ID 248    
Auditor Location Tampa, Florida    
Entity Address, Address Line Two Suite 210    
Entity Address, State or Province FL    
Documents Incorporated by Reference

The information required by Part III of this Form 10-K incorporates by reference to certain portions of the Company's Definitive Proxy Statement for the Registrant's Annual Meeting of Stockholders to be held on June 9, 2025, to be filed with the SEC within 120 days after the year ended December 31, 2024.

    
Document Financial Statement Error Correction [Flag] false    
Auditor Opinion [Text Block]

Opinion on the financial statements

We have audited the accompanying consolidated balance sheets of Odyssey Marine Exploration, Inc. (a Nevada corporation) and subsidiaries (the “Company”) as of December 31, 2024 and 2023, the related consolidated statements of operations, changes in stockholders’ equity (deficit), and cash flows for each of the two years in the period ended December 31, 2024, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2024, in conformity with accounting principles generally accepted in the United States of America.