Summary of Significant Accounting Policies (Schedule of Net Loss Per Share Determination) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Summary of Significant Accounting Policies [Abstract]
Net loss	$ (12,788)	$ (10,319)	$ (42,732)	$ (42,396)
Weighted average common stock outstanding used to compute net loss per share, basic (in shares)	38,865,011	35,303,958	38,722,012	35,157,840
Weighted average common stock outstanding used to compute net loss per share, diluted (in shares)	38,865,011	35,303,958	38,722,012	35,157,840
Net loss per share, basic	$ (0.33)	$ (0.29)	$ (1.10)	$ (1.21)
Net loss per share, diluted	$ (0.33)	$ (0.29)	$ (1.10)	$ (1.21)