Document and Entity Information - shares	9 Months Ended
	Jun. 30, 2020	Aug. 07, 2020
Cover [Abstract]
Entity Registrant Name	JANEL CORP
Entity Central Index Key	0001133062
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		865,652
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Address, State or Province	NY