Cover - shares	6 Months Ended
	Mar. 31, 2024	Apr. 30, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	000-23357
Entity Registrant Name	INOTIV, INC.
Entity Tax Identification Number	35-1345024
Entity Address, Address Line One	2701 KENT AVENUE
Entity Address, City or Town	WEST LAFAYETTE
Entity Address, Postal Zip Code	47906
City Area Code	765
Local Phone Number	463-4527
Title of 12(b) Security	Common Shares
Trading Symbol	NOTV
Security Exchange Name	NASDAQ
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		25,971,450
Entity Central Index Key	0000720154
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Incorporation, State or Country Code	IN
Entity Address, State or Province	IN
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes