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Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 24, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	MARINE PRODUCTS CORP
Entity Central Index Key	0001129155
Trading Symbol	mpx
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		38,328,101dei_EntityCommonStockSharesOutstanding
Document Type	10-Q
Document Period End Date	Mar. 31, 2015
Amendment Flag	false
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1

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-Number 240

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