Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Nov. 01, 2019
Document Information [Line Items]
Entity Registrant Name	Yunhong CTI LTD.
Entity Central Index Key	0001042187
Trading Symbol	ctib
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding (in shares)		3,835,950
Entity Shell Company	false
Document Type	10-Q/A
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Amendment Flag	true
Amendment Description	Amendment No1.
Title of 12(b) Security	Common Stock