Warrants (Details) - USD ($) $ / shares in Units, $ in Thousands				12 Months Ended
	Aug. 02, 2023	Jun. 14, 2023	Jul. 15, 2019	Dec. 31, 2024	Dec. 31, 2023	Aug. 01, 2023	Jun. 30, 2022
Class of Warrant or Right [Line Items]
Warrants issued (in shares)			2,000,000
Exercise price of warrants (in usd per share)			$ 0.001
Warrants and rights outstanding							$ 5,874
Proceeds from exercise of warrants, net				$ 165	$ 8,307
Warrants issued during period (in shares)				0
Pre-Funded Warrants
Class of Warrant or Right [Line Items]
Warrants issued (in shares)							4,000,000
Common Stock Warrants
Class of Warrant or Right [Line Items]
Warrants issued (in shares)							8,850,000
Warrants issued to purchase common stock (in shares)		3,689,452
Proceeds from warrant exercises	$ 4,800	$ 3,542
Costs of common stock issued under public equity offering-ATM					$ 35
Existing Warrants
Class of Warrant or Right [Line Items]
Exercise price of warrants (in usd per share)						$ 0.96
Class of warrant or right, outstanding (in shares)	5,000,000					5,000,000
Stock issued during period, conversion of convertible securities (in shares)					8,689,452
New Warrants
Class of Warrant or Right [Line Items]
Warrants issued (in shares)				2,750,000		2,750,000
Exercise price of warrants (in usd per share)						$ 2.60
Warrants issued to purchase common stock (in shares)				160,548
Fair value of warrants						$ 4,671
Warrants, $0.96 Exercise Price
Class of Warrant or Right [Line Items]
Exercise price of warrants (in usd per share)				$ 0.96
Minimum | Common Stock Warrants
Class of Warrant or Right [Line Items]
Exercise price of warrants (in usd per share)							$ 0.96
Maximum | Common Stock Warrants
Class of Warrant or Right [Line Items]
Exercise price of warrants (in usd per share)							$ 1.09
Senior Secured Notes Due 2025
Class of Warrant or Right [Line Items]
Interest rate			12.50%
Warrants issued (in shares)				1,683,784	1,714,429
Fair value of warrants issued			$ 6,800
Warrants issued to purchase common stock (in shares)					143,000
Senior Secured Notes Due 2025 | Warrants, $0.96 Exercise Price
Class of Warrant or Right [Line Items]
Class of warrant or right, outstanding (in shares)				1,683,784
Senior Secured Notes Due 2025 | Warrants, $4.25 Exercise Price
Class of Warrant or Right [Line Items]
Exercise price of warrants (in usd per share)				$ 4.25	$ 4.25
Class of warrant or right, outstanding (in shares)				1,571,429	1,571,429
Senior Secured Notes Due 2025 | Warrants, $5.38 Exercise Price
Class of Warrant or Right [Line Items]
Exercise price of warrants (in usd per share)				$ 5.38	$ 5.38
Class of warrant or right, outstanding (in shares)				112,355
Senior Secured Notes Due 2025 - First Additional Offering | Warrants, $5.38 Exercise Price
Class of Warrant or Right [Line Items]
Class of warrant or right, outstanding (in shares)					143,000
Senior Secured Notes Due 2025 - First Additional Offering | Additional Warrants
Class of Warrant or Right [Line Items]
Class of warrant or right, exercises (in shares)				30,645	0
Proceeds from exercise of warrants, net				$ 165
Senior Secured Notes Due 2025 - First Additional Offering | Maximum
Class of Warrant or Right [Line Items]
Warrants issued (in shares)			2,143,000
2020 Additional Notes
Class of Warrant or Right [Line Items]
Fair value of warrants issued			$ 735