Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2022	Nov. 08, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2022
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Trading Symbol	KTRA
Title of 12(b) Security	Common Stock
Security Exchange Name	NASDAQ
Entity Registrant Name	Kintara Therapeutics, Inc.
Entity Central Index Key	0001498382
Current Fiscal Year End Date	--06-30
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		80,807,316
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Incorporation, State or Country Code	NV
Entity File Number	001-37823
Entity Tax Identification Number	99-0360497
Entity Address, Address Line One	9920 Pacific Heights Blvd
Entity Address, Address Line Two	Suite 150
Entity Address, City or Town	San Diego
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92121
City Area Code	858
Local Phone Number	350-4364
Document Quarterly Report	true
Document Transition Report	false