Basic and Diluted Net Loss Per Common Share - Basic Net Loss Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net loss	$ (30,197)	$ (10,285)	$ (49,284)
Adjustments to reconcile to net loss available to common stockholders:
Accumulated dividend on Series B Preferred Stock	6,580	5,210	2,016
Amortization of beneficial conversion feature	0	0	31,110
Accretion of increasing-rate dividend feature	0	926	918
Total adjustments	6,580	6,136	34,044
Net loss available to common stockholders	$ (36,777)	$ (16,421)	$ (83,328)
Weighted average common shares outstanding (in shares)	112,909,266	110,353,406	108,257,112
Basic net loss per common share (in dollars per share)	$ (0.33)	$ (0.15)	$ (0.77)