Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2023	Nov. 01, 2023
Document Information Line Items
Entity Registrant Name	Protara Therapeutics, Inc.
Trading Symbol	TARA
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		11,364,903
Amendment Flag	false
Entity Central Index Key	0001359931
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Period End Date	Sep. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-36694
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-4580525
Entity Address, Address Line One	345 Park Avenue South
Entity Address, Address Line Two	3rd Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10010
City Area Code	(646)
Local Phone Number	844-0337
Title of 12(b) Security	Common Stock, $0.001 par value per share
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes