Preferred Stock and Common Stock - Private Placement and Sales Agreement (Details) $ / shares in Units, $ in Thousands	1 Months Ended			3 Months Ended	9 Months Ended
	Apr. 30, 2024 USD ($) $ / shares shares	Mar. 31, 2024 USD ($) $ / shares shares	Nov. 30, 2022 USD ($) Offering	Sep. 30, 2024 $ / shares shares	Sep. 30, 2024 USD ($) $ / shares shares
Private Placement
Preferred stock and Common stock
Common stock issued and sold (in shares) | shares	1,953,125
Purchase price (in dollars per share)	$ 0.64
Gross proceeds from private placement | $	$ 11,300
Private Placement | Prefunded warrants
Preferred stock and Common stock
Warrants issued (in shares) | shares	15,627,441
Purchase price, warrant (in dollars per share)	$ 0.6399
Exercise price, warrants (in dollars per share)	$ 0.0001
2022 Shelf Registration Statement, Private Placement
Preferred stock and Common stock
Maximum amount of securities available | $			$ 250,000
2022 Shelf Registration Statement, Private Placement | Minimum
Preferred stock and Common stock
Number of potential offerings | Offering			1
At-the-Market Offerings
Preferred stock and Common stock
Common stock issued and sold (in shares) | shares				0	7,000,000
Purchase price (in dollars per share)				$ 1.00	$ 1.00
Gross proceeds from private placement | $					$ 7,000
Maximum amount of shares available | $			$ 75,000
License and Stock Purchase Agreement | Gilead Sciences, Inc.
Preferred stock and Common stock
Common stock issued and sold (in shares) | shares	485,250	6,860,223
Purchase price (in dollars per share)	$ 0.76	$ 1.97
Gross proceeds from private placement | $	$ 3,300	$ 13,500			$ 16,800
License and Stock Purchase Agreement | Gilead Sciences, Inc. | Prefunded warrants
Preferred stock and Common stock
Warrants issued (in shares) | shares	3,882,450
Purchase price, warrant (in dollars per share)	$ 0.7599
Exercise price, warrants (in dollars per share)	$ 0.0001