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Organization of the Company and Basis of Presentation (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Jun. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Mar. 31, 2022
Company Overview
Net loss	$ (5,096)	$ (4,575)	$ (4,757)	$ (8,683)	$ (13,779)	$ (13,363)	$ (21,198)	$ (18,457)
Accumulated deficit	$ (398,308)		$ (379,434)		$ (398,308)	$ (379,434)	(405,727)	(384,529)	$ (388,637)
Cash and cash equivalents							$ 18,345	$ 36,559

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