Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Mar. 01, 2014	Jun. 30, 2013
Document and Entity Information:
Entity Registrant Name	Omega Flex, Inc.
Document Type	10-K
Document Period End Date	Dec. 31, 2013
Amendment Flag	false
Entity Central Index Key	0001317945
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		10,091,822
Entity Public Float			$ 46,707,220
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY