Stock-Based Compensation - Narratives (Details) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022 USD ($) item shares	Jun. 30, 2022 USD ($) item $ / shares shares
Stock-Based Compensation
Number of equity incentive plans | item	2	2
Aggregate intrinsic value of outstanding options	$ 500	$ 500
Aggregate intrinsic value of exercisable options	500	500
Aggregate intrinsic value of exercisable options	$ 3	$ 10
Stock Options
Stock-Based Compensation
Weighted average grant date fair value, Options (per share) | $ / shares		$ 6.84
Inducement grants | shares	257,750	257,750
Unrecognized compensation expense	$ 5,800	$ 5,800
Weighted average period for recognition of unrecognized expenses		2 years 7 months 6 days
Restricted stock units
Stock-Based Compensation
Vesting period		4 years
Weighted average grant date fair value, Equity Instruments (per share) | $ / shares		$ 11.30
Aggregate intrinsic value	2,200	$ 2,200
Unrecognized compensation expense	$ 3,100	$ 3,100
Weighted average period for recognition of unrecognized expenses		3 years 1 month 6 days
2019 Equity Incentive Plan
Stock-Based Compensation
Shares available for future issuance | shares	983,654	983,654
Potential Common Shares Added Annually To Equity Plan Evergreen Option | shares	432,442	432,442
Potential Common Shares Added Annually To Equity Plan Evergreen Option, Percentage Of Shares Outstanding Last Day Of Fiscal Year	4.00%	4.00%
2019 Equity Incentive Plan | Stock Options
Stock-Based Compensation
Vesting period		4 years
Vesting term		10 years