Stock-Based Compensation - Service Based Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Shares Underlying Options
Outstanding at the beginning of the period (in shares)	528,591
Outstanding at the end of the period (in shares)	1,206,905	528,591
Aggregate Intrinsic Value (in $1,000's)
Exercisable at end of period	$ 100
Stock option awards - Service based awards
Shares Underlying Options
Outstanding at the beginning of the period (in shares)	528,591	519,814
Granted (in shares)	898,659	177,014
Expired (in shares)	(96,199)	(128,064)
Forfeited (in shares)	(124,146)	(40,173)
Outstanding at the end of the period (in shares)	1,206,905	528,591	519,814
Exercisable at end of period (in shares)	243,088
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 32.01	$ 50.05
Granted (in dollars per share)	1.49	9.68
Expired (in dollars per share)	(78.06)	(77.00)
Forfeited (in dollars per share)	(5.70)	(24.42)
Outstanding at the end of the period (in dollars per share)	28.31	$ 32.01	$ 50.05
Exercise price (in dollars per share)	$ 4.81
Weighted Average Remaining Contractual Term
Outstanding	8 years 10 months 24 days	7 years 6 months	6 years 7 months 6 days
Granted		6 years
Exercisable	6 years 9 months 18 days
Aggregate Intrinsic Value (in $1,000's)
Outstanding	$ 0	$ 0	$ 0
Granted		$ 0
Exercisable at end of period	$ 0