Summary of Significant Accounting Policies (Numerators And Denominators In The Calculation Of Basic And Diluted Net Loss Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net loss	$ (76,246)	$ (32,385)	$ (6,334)
Shares used in computing net loss per share, basic and diluted	40,202	39,405	26,105
Net loss per share, basic and diluted	$ (1.90)	$ (0.82)	$ (0.24)
Stock Option [Member]
Numerator:
Common stock excluded from net loss per share, diluted	2,055	2,211	2,145
Warrants [Member]
Numerator:
Common stock excluded from net loss per share, diluted			554