Liquidity (Details) $ / shares in Units, $ in Thousands				3 Months Ended		9 Months Ended
	Aug. 01, 2024 USD ($) investor $ / shares shares	Mar. 19, 2024 USD ($) investor $ / shares shares	Jan. 08, 2024 USD ($) $ / shares shares	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Accumulated deficit				$ 241,388		$ 241,388		$ 217,244
Net loss				7,108	$ 9,267	24,144	$ 29,204
Net cash used in operating activities						28,249	$ 26,585
Upfront fee and milestone payments						10,500
Potential milestone payments to be received						191,500
Cash and cash equivalents				21,031		21,031		2,530
Restricted cash and cash equivalents				$ 100		$ 100		$ 100
August 2024 Registered Direct Offering
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares of stock (in shares) | shares	6,370,070
Offering price (in dollars per share) | $ / shares	$ 1.325
Number of institutional investors | investor	1
August 2024 Registered Direct Offering | Pre-Funded Warrants
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares of stock (in shares) | shares	15,849,056
Common stock to be called by warrants (in shares) | shares	9,478,986
Offering price (in dollars per share) | $ / shares	$ 1.3249
Warrant exercise price (in dollars per share) | $ / shares	$ 1.20
Net proceeds of common stock	$ 19,500
March 2024 Registered Direct Offering
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares of stock (in shares) | shares		11,000,000
Offering price (in dollars per share) | $ / shares		$ 1.535
Number of institutional investors | investor		2
March 2024 Registered Direct Offering | Pre-Funded Warrants
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common stock to be called by warrants (in shares) | shares		2,029,316
Offering price (in dollars per share) | $ / shares		$ 1.5349
Net proceeds of common stock		$ 18,500
Private Placement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common stock to be called by warrants (in shares) | shares		13,029,316
Warrant exercise price (in dollars per share) | $ / shares		$ 1.41
Public Offering
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares of stock (in shares) | shares			10,130,000
Offering price (in dollars per share) | $ / shares			$ 0.75
Public Offering | Pre-Funded Warrants
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares of stock (in shares) | shares			12,000,000
Common stock to be called by warrants (in shares) | shares			1,870,000
Offering price (in dollars per share) | $ / shares			$ 0.7499
Net proceeds of common stock			$ 8,200