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Business and Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Cash and cash equivalents $ 7,780 $ 11,251 $ 11,531
Loss from continuing operations (8,534) $ (21,433)  
Accumulated deficit 538,359   $ 546,054
Revolving Credit Facility | Line of Credit      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Line of credit facility, remaining borrowing capacity $ 1,500