| Cover | Aug. 13, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 13, 2024 |
| Entity File Number | 1-16525 |
| Entity Registrant Name | CVD EQUIPMENT CORPORATION |
| Entity Central Index Key | 0000766792 |
| Entity Tax Identification Number | 11-2621692 |
| Entity Incorporation, State or Country Code | NY |
| Entity Address, Address Line One | 355 South Technology Drive |
| Entity Address, City or Town | Central Islip |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 11722 |
| City Area Code | (631) |
| Local Phone Number | 981-7081 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | CVV |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
