v3.26.1
Cover - shares
3 Months Ended
Mar. 31, 2026
May 15, 2026
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2026  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Entity File Number 001-41097  
Entity Registrant Name Cardio Diagnostics Holdings, Inc.  
Entity Central Index Key 0001870144  
Entity Tax Identification Number 87-0925574  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 311 West Superior Street  
Entity Address, Address Line Two Suite 444  
Entity Address, City or Town Chicago  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60654  
City Area Code 855  
Local Phone Number 226-9991  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   2,959,469
Common Stock, par value $0.00001 per share    
Title of 12(b) Security Common Stock, par value $0.00001 per share  
Trading Symbol CDIO  
Security Exchange Name NASDAQ  
Redeemable Warrants, each whole warrant exercisable for one share of Common Stock    
Title of 12(b) Security Redeemable Warrants, each whole warrant exercisable for one share of Common Stock  
Trading Symbol CDIOW  
Security Exchange Name NASDAQ