Cover - shares	3 Months Ended
	Mar. 31, 2024	Apr. 30, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Period End Date	Mar. 31, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Entity Information [Line Items]
Entity Registrant Name	Protara Therapeutics, Inc.
Entity Central Index Key	0001359931
Entity File Number	001-36694
Entity Tax Identification Number	20-4580525
Entity Incorporation, State or Country Code	DE
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Contact Personnel [Line Items]
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
Entity Phone Fax Numbers [Line Items]
City Area Code	(646)
Local Phone Number	844-0337
Entity Listings [Line Items]
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	TARA
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		20,589,976