v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2018
Oct. 31, 2018
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Trading Symbol OMEX  
Entity Registrant Name ODYSSEY MARINE EXPLORATION INC  
Entity Central Index Key 0000798528  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Smaller Reporting Company true  
Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   8,466,909