| Cover | Dec. 09, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 9, 2021 |
| Entity File Number | 000-51372 |
| Entity Registrant Name | OMEGA FLEX, INC |
| Entity Central Index Key | 0001317945 |
| Entity Tax Identification Number | 23-1948942 |
| Entity Incorporation, State or Country Code | PA |
| Entity Address, Address Line One | 451 Creamery Way |
| Entity Address, City or Town | Exton |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 19341 |
| City Area Code | (610) |
| Local Phone Number | 524-7272 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Trading Symbol | OFLX |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
