Summary of Significant Accounting Policies (Schedule of Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Summary of Significant Accounting Policies [Abstract]
Net loss	$ (15,398)	$ (10,539)	$ (32,077)	$ (21,233)
Weighted average common stock outstanding used to compute net loss per share, basic and diluted (in shares)	35,143,178	34,534,099	35,083,569	34,435,812
Net loss per share, basic	$ (0.44)	$ (0.31)	$ (0.91)	$ (0.62)
Net loss per share, diluted	$ (0.44)	$ (0.31)	$ (0.91)	$ (0.62)