Summary of Significant Accounting Policies (Schedule of Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Summary of Significant Accounting Policies [Abstract]
Net loss	$ (10,319)	$ (13,885)	$ (42,396)	$ (35,118)
Weighted average common stock outstanding used to compute net loss per share, basic and diluted (in shares)	35,303,958	34,736,015	35,157,840	34,536,980
Net loss per share, basic	$ (0.29)	$ (0.40)	$ (1.21)	$ (1.02)
Net loss per share, diluted	$ (0.29)	$ (0.40)	$ (1.21)	$ (1.02)