v3.26.1
Cover - shares
9 Months Ended
Sep. 30, 2025
Nov. 11, 2025
Cover [Abstract]    
Entity Registrant Name CRONA CORP.  
Entity Central Index Key 0001696411  
Document Type 10-Q  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Small Business true  
Entity Shell Company false  
Entity Emerging Growth Company false  
Entity Current Reporting Status Yes  
Document Period End Date Sep. 30, 2025  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2025  
Entity Common Stock Shares Outstanding   7,087,600
Entity File Number 333-216180  
Entity Incorporation State Country Code WY  
Entity Tax Identification Number 35-2574778  
Entity Address Address Line 1 422 Richards Street  
Entity Address Address Line 2 Unit 170  
Entity Address City Or Town Vancouver  
Entity Address State Or Province BC  
Entity Address Postal Zip Code V6B 2Z4  
City Area Code 888  
Local Phone Number 998-9449  
Security 12b Title Common stock  
Trading Symbol CCCP  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes