Stockholders' Equity - Inducement Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Aggregate Intrinsic Value
Stock based compensation expense	$ 1,500	$ 368
Compensation cost not yet recognized	3,400
Options to purchase common stock
Aggregate Intrinsic Value
Stock based compensation expense	183
Compensation cost not yet recognized	$ 255
Inducement Equity Incentive Plan
Number of Shares
Outstanding at beginning of period (in shares)	56,500
Granted (in shares)	0
Exercised (in shares)	0
Forfeited (in shares)	0
Outstanding at end of period (in shares)	56,500		56,500
Weighted-average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 16.41
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	0
Outstanding at end of period (in dollars per share)	$ 16.41		$ 16.41
Weighted-average Remaining Contractual Term (years)
Outstanding	9 years 18 days		9 years 6 months 18 days
Aggregate Intrinsic Value
Outstanding	$ 0		$ 973