XML 42 R1.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2019
Feb. 14, 2020
Jun. 30, 2019
Document and Entity Information      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2019    
Entity File Number 1-16263    
Entity Registrant Name MARINE PRODUCTS CORP    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 58-2572419    
Entity Address, Address Line One 2801 BUFORD HIGHWAY NE, SUITE 300    
Entity Address, City or Town ATLANTA    
Entity Address, State or Province GA    
Entity Address, Postal Zip Code 30329    
City Area Code 404    
Local Phone Number 321-7910    
Title of 12(b) Security COMMON STOCK    
Trading Symbol MPX    
Security Exchange Name NYSE    
Entity Well-Known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 111,062,568
Entity Common Stock, Shares Outstanding   33,975,976  
Entity Central Index Key 0001129155    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false