Cover Page - shares	6 Months Ended
	Jun. 30, 2020	Aug. 17, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	000-13789
Entity Registrant Name	ADHERA THERAPEUTICS, INC.
Entity Central Index Key	0000737207
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2020
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	11-2658569
Entity Address, Address Line One	8000 Innovation Parkway Drive
Entity Address, City or Town	Baton Rouge
Entity Address, State or Province	LA
Entity Address, Postal Zip Code	70820
City Area Code	919
Local Phone Number	518-3748
Entity's Reporting Status Current	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business Flag	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		10,869,530