Convertible Preferred Stock and Common Stock Warrants - February Offerings (Details) $ / shares in Units, $ in Thousands				3 Months Ended		6 Months Ended
	Feb. 29, 2024 USD ($)	Feb. 25, 2024 USD ($) $ / shares shares	Feb. 17, 2023 USD ($) $ / shares shares	Jun. 30, 2024 USD ($) $ / shares shares	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) $ / shares shares	Jun. 30, 2023 USD ($)	Dec. 31, 2023 $ / shares shares
Class of Warrant or Right [Line Items]
Common stock, shares issued (in shares) | shares				9,099,539		9,099,539		8,797,456
Common stock, par value (in dollars per share) | $ / shares				$ 0.0001		$ 0.0001		$ 0.0001
Proceeds from issuance of preferred stock						$ 8,856	$ 29,793
Warrants exercised | shares						0
Net proceeds from issuance of preferred stock and warrants	$ 9,250
Preferred stock issuance costs		$ 102
General and administrative				$ 6,290	$ 6,124	$ 12,340	$ 14,990
Series A Convertible Preferred Stock
Class of Warrant or Right [Line Items]
Preferred stock, shares issued (in shares) | shares			30,000	27,200		27,200		28,628
Preferred stock, par value (in dollars per share) | $ / shares				$ 0.0001		$ 0.0001		$ 0.0001
Common stock, shares issued (in shares) | shares			7,871,712
Common stock, par value (in dollars per share) | $ / shares			$ 0.0001
Proceeds from issuance of preferred stock			$ 30,000
Convertible preferred stock, conversion ratio			145.7726
Liquidation preference			$ 1
Number of securities called by each warrant (in shares) | shares			1
Exercise price of warrant (in dollars per share) | $ / shares			$ 4.66
Warrants exercised | shares						0
Aggregate estimated fair value of warrants			$ 26,133
Net proceeds from issuance of preferred stock and warrants			3,867
Accrued stock issuance costs			1,963
Preferred stock issuance costs			253
General and administrative			$ 1,710
Series B Convertible Preferred Stock
Class of Warrant or Right [Line Items]
Preferred stock, shares issued (in shares) | shares		9,250		9,250		9,250		0
Preferred stock, par value (in dollars per share) | $ / shares		$ 0.0001		$ 0.0001		$ 0.0001		$ 0.0001
Common stock, shares issued (in shares) | shares		1,799,021
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001
Proceeds from issuance of preferred stock	$ 9,250
Convertible preferred stock, conversion ratio		129.6596
Liquidation preference		$ 1
Number of securities called by each warrant (in shares) | shares		1
Exercise price of warrant (in dollars per share) | $ / shares		$ 7.7125
Warrants exercised | shares						0
Aggregate estimated fair value of warrants		$ 6,856
Net proceeds from issuance of preferred stock and warrants		2,394
Accrued stock issuance costs		394
General and administrative		$ 292