Stock Incentive Plans - Employee Stock Purchase Plan (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized and reserved for future issuance (in shares)			34,210,815		28,209,867
Stock-based compensation expense			$ 2,753	$ 1,780
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized and reserved for future issuance (in shares)			3,677,538			173,076
Number of shares authorized, increase (in shares)	1,236,229	1,080,711
Shares of common stock issued to employees under the ESPP (in shares)			81,057
Stock-based compensation expense			$ 100	$ 100