Business and Organization (Details) - USD ($) $ / shares in Units, $ in Thousands	May 26, 2022	Sep. 30, 2022	Dec. 31, 2021	[1]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Accumulated deficit		$ 748,045	$ 735,461
Cash, cash equivalents and investments		26,800
Debt obligation initial payment		6,000
Additional compliance period	180 days
Number of consecutive business days considered for minimum closing bid price	10 days
Goodwill or other intangible assets		$ 9,934
Series Z convertible preferred stock
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Temporary equity, preferred stock, par value		$ 0.01

[1] The condensed consolidated balance sheet at December 31, 2021 has been derived from the audited financial statements at that date.