| Document and Entity Information | Oct. 24, 2024 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Oct. 24, 2024 |
| Entity File Number | 1-16263 |
| Entity Registrant Name | MARINE PRODUCTS CORPORATION |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 58-2572419 |
| Entity Address State Or Province | GA |
| Entity Address, Address Line One | 2801 Buford Highway NE |
| Entity Address, Adress Line Two | Suite 300 |
| Entity Address, City or Town | Atlanta |
| Entity Address, Postal Zip Code | 30329 |
| City Area Code | 404 |
| Local Phone Number | 321-7910 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001129155 |
| Amendment Flag | false |
| Document Information | Oct. 24, 2024 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Amendment | false |
| CIK | 0001129155 |
| Registrant Name | MARINE PRODUCTS CORPORATION |
| Period End Date | Oct. 24, 2024 |
