XML 12 R1.htm IDEA: XBRL DOCUMENT v3.22.2
Cover Page - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Mar. 08, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
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   14,349,363  
Entity Public Float     $ 78.2
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 Warren Averett, LLC    
Auditor Firm ID 2226    
Auditor Location Tampa, Florida    
Entity Address, Address Line Two Suite 210    
Entity Address, State or Province FL    
Amendment Description EXPLANATORY NOTE Odyssey Marine Exploration, Inc. (the “Company,” “we,” or “our”) is filing this Form 10-K/A (this “Amendment”) to further amend our Annual Report on Form 10-K for the year ended December 31, 2021, which we filed with the Securities and Exchange Commission (the “SEC”) on March 31, 2022 (the “Original Filing”), as amended by the Form 10-K/A that we filed with the SEC on July 19, 2022 (the "First Amendment"). As used in this Amendment, the Original Filing, as previously amended by the First Amendment, is referred to as the "Amended Filing." This Amendment is being filed to amend and restate Item 2 of Part I and Item 9A of Part I in their entirety in response to comments received from the SEC staff with respect to the First Amendment. This Amendment also restates Item 15 of Part IV in its entirety and, pursuant to Rule 12b-15, new certifications by our principal executive officer and our chief financial officer as required by Section 302 and Section 906 of the Sarbanes-Oxley Act of 2002 are filed as exhibits to this Amendment. Other than the items referenced above, this Amendment does not attempt to modify or update the Amended Filing. This Amendment does not reflect events occurring after the date of the Original Filing or modify or update those disclosures that may be affected by subsequent events. Such subsequent matters are or will be addressed in subsequent reports filed by the Company with the SEC. Accordingly, this Amendment should be read in conjunction with the Amended Filing. Capitalized terms not defined in this Amendment have the meaning given to them in the Original Filing.