v3.26.1
Document And Entity Information - shares
 3 Months Ended
Mar. 28, 2026
Apr. 28, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 28, 2026  
Document Transition Report false  
Entity File Number 0-16088  
Entity Registrant Name CPS TECHNOLOGIES CORP.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 04-2832509  
Entity Address, Address Line One 111 South Worcester Street  
Entity Address, City or Town Norton  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 02766-2102  
City Area Code 508  
Local Phone Number 222-0614  
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  
Title of 12(b) Security Common Stock, $0.01 par value  
Trading Symbol CPSH  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding (in shares)   18,006,963
Entity Central Index Key 0000814676  
Current Fiscal Year End Date --12-26  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false