Document and Entity Information - USD ($)	9 Months Ended
	Sep. 26, 2015	Oct. 21, 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	Sep. 26, 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		$ 19,900,000
Entity Common Stock, Shares Outstanding		13,197,918
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2015