v3.26.1
Cover - shares
 3 Months Ended
Mar. 31, 2026
Jun. 30, 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 001-42494  
Entity Registrant Name CLOUDASTRUCTURE, INC.  
Entity Central Index Key 0001709628  
Entity Tax Identification Number 87-0690564  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 3000 El Camino Real  
Entity Address, Address Line Two Bldg 4  
Entity Address, Address Line Three Ste 200.  
Entity Address, City or Town Palo Alto  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94306  
City Area Code 650  
Local Phone Number 644-4160  
Title of 12(b) Security Class A Common Stock  
Trading Symbol CSAI  
Security Exchange Name NASDAQ  
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  
Common Class A [Member]    
Entity Common Stock, Shares Outstanding   24,992,242
Common Class B [Member]    
Entity Common Stock, Shares Outstanding   5,638