Common Stock (Details) - USD ($)								3 Months Ended	12 Months Ended
	May 15, 2023	Dec. 09, 2022	Dec. 07, 2022	Jul. 06, 2022	Jun. 30, 2022	Mar. 03, 2022	Jan. 14, 2022	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	May 18, 2023	Dec. 31, 2022	Sep. 01, 2022	Aug. 31, 2022	Dec. 31, 2021	Nov. 09, 2021	Mar. 23, 2021	Nov. 29, 2019
Class of Stock [Line Items]
Common stock, authorized (in shares)									500,000,000				500,000,000	125,000,000
Common stock par value (in dollars per share)									$ 0.001	$ 0.001
Cash dividends									$ 0
Sale of Stock, Purchase Agreement, Shares Issued							230,414
Purchase Agreement, Shares Purchased							1,382,488
Accelerated Share Repurchases, Initial Price Paid Per Share							$ 2.17
Payments for Securities Purchased under Agreements to Resell							$ 3,000,000.0
Class of warrant or right, outstanding (in shares)									108,792,939	112,659,093		111,871,750			13,257,160
Convertible preferred stock exercise price (in dollars per share)						$ 1.79
Class of Warrant or Right, Additional Exercise Price of Warrants or Rights		$ 0.001		$ 0.001		$ 0.01					$ 0.001					$ 0.01	$ 0.01	$ 0.001
Warrants and Rights Outstanding, Transaction Fees								$ 2,900,000
Warrant liability									$ 13,755,000	$ 15,683,000
Preferred stock, authorized (in shares)									10,000,000	10,000,000
Preferred stock par value (in dollars per share)									$ 0.001	$ 0.001
Preferred stock, outstanding (in shares)									0	0
Warrant
Class of Stock [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings									$ (2,500,000)
Warrant
Class of Stock [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value				$ 41,200,000
Pre Funded Warrant
Class of Stock [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value				$ 13,500,000
Equity Unit Purchase Agreements
Class of Stock [Line Items]
Purchase agreement, term							36 months
Lincoln Park Capital Fund, LLC
Class of Stock [Line Items]
Long-term Purchase Commitment, Amount							$ 50,000,000.0
Pre Funded Warrant
Class of Stock [Line Items]
Convertible preferred stock exercise price (in dollars per share)																		$ 11.999
Pre Funded Warrant
Class of Stock [Line Items]
Class of warrant or right, outstanding (in shares)						766,666
Q1 2022 PIPE
Class of Stock [Line Items]
Stock issued (in shares)						900,000
Sale price (in dollars per share)						$ 1.80
Proceeds from Issuance of Warrants						$ 3,000,000.0
Q1 2022 PIPE | Pre Funded Warrant
Class of Stock [Line Items]
Convertible preferred stock exercise price (in dollars per share)						$ 0.01
Q2 2022 Private Placement
Class of Stock [Line Items]
Stock issued (in shares)					37,649,086
Sale price (in dollars per share)					$ 1.095
Number of warrants issued (in shares)				50,925,365
Warrants and rights outstanding, term					60 months
Class of Warrant or Right, Additional Exercise Price of Warrants or Rights					$ 0.001
Proceeds from common stock issuance				$ 55,700,000
Q2 2022 Private Placement | Pre Funded Warrant
Class of Stock [Line Items]
Convertible preferred stock exercise price (in dollars per share)					$ 1.094
Number of warrants issued (in shares)					13,276,279
Q4 2022 Public Offering
Class of Stock [Line Items]
Stock issued (in shares)			52,300,000
Proceeds from common stock issuance		$ 65,100,000
Q4 2022 Public Offering | Class C Warrants
Class of Stock [Line Items]
Sale price (in dollars per share)			$ 1.50
Number of warrants issued (in shares)			32,762,947
Warrants and rights outstanding, term			5 years
Warrant liability												$ 21,500,000
Additional paid in capital												$ 43,600,000
Transaction fees		$ 1,700,000
Q4 2022 Public Offering | Pre Funded Warrant
Class of Stock [Line Items]
Sale price (in dollars per share)			$ 1.10
Convertible preferred stock exercise price (in dollars per share)			$ 1.099
Number of warrants issued (in shares)			6,800,000
Q2 2023 PIPE
Class of Stock [Line Items]
Stock issued (in shares)	34,521,046
Sale price (in dollars per share)	$ 1.52
Number of warrants issued (in shares)	8,263,157
Class of Warrant or Right, Additional Exercise Price of Warrants or Rights	$ 0.001
Proceeds from common stock issuance	$ 65,000,000.0
Q2 2023 PIPE | Pre Funded Warrant
Class of Stock [Line Items]
Convertible preferred stock exercise price (in dollars per share)	$ 1.519