Document and Entity Information (USD $)	3 Months Ended
	Mar. 28, 2015	Apr. 23, 2015
Document And Entity Information
Entity Registrant Name	CPS Technologies Corp/DE/
Entity Central Index Key	0000814676
Document Type	10-Q
Document Period End Date	Mar. 28, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-26
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float		$ 18,000,000
Entity Common Stock, Shares Outstanding		13,165,019
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2015