v3.26.1
Cover - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Mar. 27, 2026
Jun. 30, 2025
Cover [Abstract]        
Document Type 10-K      
Amendment Flag false      
Document Annual Report true      
Document Transition Report false      
Document Period End Date Dec. 31, 2025      
Document Fiscal Period Focus FY      
Document Fiscal Year Focus 2025      
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       $ 14,612,028
Entity Common Stock, Shares Outstanding     6,937,338  
Documents Incorporated By Reference None      
ICFR Auditor Attestation Flag false      
Document Financial Statement Error Correction [Flag] false      
Entity Listing, Par Value Per Share $ 0.01      
Auditor Firm ID 199 688    
Auditor Name CBIZ CPAs P.C. Marcum LLP    
Auditor Location Melville, NY Melville, NY