Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2021	Apr. 30, 2021
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2021
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2020
Entity Registrant Name	CYBEROPTICS CORP
Entity Central Index Key	0000768411
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		7,299,376
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	0-16577
Entity Address, Address Line One	5900 Golden Hills Drive
Entity Address, City or Town	MINNEAPOLIS
Entity Address, State or Province	MN
Entity Address, Postal Zip Code	55416
Entity Tax Identification Number	41-1472057
City Area Code	(763)
Local Phone Number	542-5000
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	CYBE
Security Exchange Name	NASDAQ
Document Transition Report	false
Document Quarterly Report	true
Entity Incorporation, State or Country Code	MN
Entity Interactive Data Current	Yes