Stockholders' Deficit (Details) - USD ($) $ / shares in Units, $ in Thousands						12 Months Ended
	Mar. 22, 2023	Mar. 19, 2023	Feb. 23, 2023	Apr. 15, 2022	Dec. 02, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 07, 2023	Mar. 23, 2023	Dec. 31, 2021
Subsidiary, Sale of Stock [Line Items]
Warrants outstanding (in shares)						36,344,212	36,964,286
Common stock, shares issued (in shares)						120,204,513	76,564,396
Common stock, par value (in dollars per share)						$ 0.001	$ 0.001
Issuance costs to additional paid in capital		$ 2,900
Proceeds from issuance of common stock from ATM Program, net of issuance costs						$ 4,448	$ 90,849
The Warrants
Subsidiary, Sale of Stock [Line Items]
Exercise price (in dollars per share)		$ 1.55
Pre Funded Warrant
Subsidiary, Sale of Stock [Line Items]
Warrants outstanding (in shares)						0
Adjustment to additional-paid-in-capital for warrants issued		$ 22,800
Warrants exercised (in shares)						20,965,747
Warrants
Subsidiary, Sale of Stock [Line Items]
Warrants exercised (in shares)						5,850,747
Wainwright
Subsidiary, Sale of Stock [Line Items]
Warrants outstanding (in shares)					36,964,286	0	36,964,286
Exercise price (in dollars per share)					$ 9.00	$ 9.00
Adjustment to additional-paid-in-capital for warrants issued					$ 61,900
Warrants expired (in shares)								27,940,074
Securities Purchase Agreement
Subsidiary, Sale of Stock [Line Items]
Warrants outstanding (in shares)						27,320,000	0
Exercise price (in dollars per share)						$ 1.55
Common stock, shares issued (in shares)		12,205,000
Common stock, par value (in dollars per share)		$ 0.001
Common stock purchasable under prefunded warrants (in shares)		20,965,747
Common stock purchasable under warrants (in shares)		33,170,747
Securities Purchase Agreement | Common Stock And Accompanying Warrant
Subsidiary, Sale of Stock [Line Items]
Purchase price (in dollars per share)		$ 1.675
Securities Purchase Agreement | Pre Funded Warrant And Accompanying Warrant
Subsidiary, Sale of Stock [Line Items]
Purchase price (in dollars per share)		$ 1.674
Warrant Amendment Agreements
Subsidiary, Sale of Stock [Line Items]
Net proceeds	$ 55,500	$ 1,200
Warrants outstanding (in shares)						9,024,212	0
Exercise price (in dollars per share)	$ 1.55					$ 1.55			$ 1.55	$ 9.00
Common stock purchasable under warrants (in shares)	9,024,212
Warrants exercisable into stock (in shares)		9,024,212
Additional consideration per amended warrant (in dollars per share)	$ 0.125
Estimated offering expenses		$ 4,200
Proceeds from issuance of common stock from ATM Program, net of issuance costs		$ 51,300
Placement fees	$ 100
Proceeds from warrant amendment	$ 1,100
At The Market Program
Subsidiary, Sale of Stock [Line Items]
Authorized amount			$ 70,000	$ 239,000
Issued stock (in shares)						3,312,908	13,043,797
Net proceeds						$ 4,400	$ 90,800
Payments of stock issuance costs						$ 400	$ 3,100