Summary of Significant Accounting Policies (Schedule of Net Loss Per Share Determination) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Summary of Significant Accounting Policies [Abstract]
Net loss	$ (16,460)	$ (16,679)
Weighted average common stock outstanding used to compute net loss per share, basic (in shares)	38,532,202	35,023,297
Weighted average common stock outstanding used to compute net loss per share, diluted (in shares)	38,532,202	35,023,297
Net loss per share, basic	$ (0.43)	$ (0.48)
Net loss per share, diluted	$ (0.43)	$ (0.48)