Risks and Uncertainties - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended		25 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2020	Jul. 15, 2019
Unusual Risk or Uncertainty [Line Items]
Cash and cash equivalents	$ 27,273	$ 28,024	$ 27,273	$ 31,807
Accumulated deficit	311,207	256,796	$ 311,207
Cost of common stock issued under equity offering	$ (289)	$ (1,291)
Common Stock
Unusual Risk or Uncertainty [Line Items]
Common stock issued under equity offering (in shares)	2,860,538	6,550,486
At The Market Offering
Unusual Risk or Uncertainty [Line Items]
Number of shares issued in transaction (in shares)			10,341,957
Consideration received on sale of stock	$ 3,907	$ 29,778	$ 39,740
Payments of stock issuance costs			$ 2,053
Remaining amount available for offering	$ 33,416
Senior Secured Notes Due 2025
Unusual Risk or Uncertainty [Line Items]
Interest rate	12.50%		12.50%
Senior Secured Notes Due 2025 | Senior Notes
Unusual Risk or Uncertainty [Line Items]
Interest rate	12.50%		12.50%		12.50%