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Cover - USD ($)
 12 Months Ended
Dec. 31, 2023
Mar. 25, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Current Fiscal Year End Date --12-31    
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    
Title of 12(b) Security Common Stock, Par value $0.01    
Trading Symbol CVV    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 48,002,094
Entity Common Stock, Shares Outstanding   6,824,511  
Documents Incorporated by Reference [Text Block] None    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 688    
Auditor Name Marcum LLP    
Auditor Location Melville, NY