v3.26.1
Cover Page - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Jun. 15, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Document Period End Date Dec. 31, 2025    
Document Fiscal Year Focus 2025    
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   58,574,115  
Entity Public Float     $ 38.3
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, Address Line Two Suite 210    
Entity Address, City or Town Tampa    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33609    
City Area Code 813    
Local Phone Number 876-1776    
Documents Incorporated by Reference
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 filed with the SEC within 120 days after the year ended December 31, 2025.
   
Document Financial Statement Error Correction [Flag] false    
Amendment Description EXPLANATORY NOTE Odyssey Marine Exploration, Inc. (the “Company,” “we,” “us” or “our”) is filing this Amendment No. 1 on Form 10-K/A (this “Amendment No. 1”) to amend its Annual Report on Form 10-K for the fiscal year ended December 31, 2025, originally filed with the Securities and Exchange Commission (“SEC”) on March 31, 2026 (the “Original Filing”). Capitalized terms not otherwise defined in this Amendment No. 1 shall have the same meanings assigned to such terms in the Original Filing. We are filing this Amendment No. 1 in response to a comment letter from the SEC, dated June 9, 2026, in connection with its review of the Original Filing. The sole purpose of this Amendment No. 1 is to amend and restate in its entirety the disclosure in Part I, Item 2, “Properties,” to revise the disclosure regarding our mineral exploration projects to (a) clearly distinguish between material and non-material properties and provide the information required by Items 1303 and 1304 of Regulation S-K and (b) include disclosure regarding our exploration program internal controls as required by Item 1305 of Regulation S-K. As required by Rule 12b-15 under the Exchange Act, a new certification by the Company’s principal executive officer and principal financial officer are filed herewith as Exhibit 31.2 to this Amendment No. 1 pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act. As no financial statements have been included in this Amendment No. 1 and this Amendment No. 1 does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4, and 5 of the certifications have been omitted. Additionally, because this Amendment No. 1 does not include financial statements, the Company is not including certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Except as described above, this Amendment No. 1 does not modify or update disclosure in, or exhibits to, the Original Filing. Furthermore, this Amendment No. 1 does not change any previously reported financial results, nor does it reflect events occurring after the date of the Original Filing. As such, information not affected by this Amendment No. 1 remains unchanged and reflects the disclosures made at the time the Original Filing was filed. Accordingly, this Amendment No. 1 should be read in conjunction with the Original Filing and other filings of the Company with the Securities and Exchange Commission.