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The Company and Summary of Significant Accounting Policies - Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
The Company and Summary of Significant Accounting Policies    
Bonuses earned during 2022 $ 961 $ 961
Payroll and payroll taxes 311 696
Legal, consulting, and financial services 344 542
Other 227 204
Total accrued liabilities $ 1,843 $ 2,403 [1]
[1] The condensed consolidated balance sheet as of December 31, 2022 was derived from the audited consolidated balance sheet as of that date.