Quarterly report pursuant to Section 13 or 15(d)

Business and Summary of Significant Accounting Policies - Schedule of net revenue (Details)

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Business and Summary of Significant Accounting Policies - Schedule of net revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Business and Summary of Significant Accounting Policies    
Net revenue $ 255 $ 469
Components    
Business and Summary of Significant Accounting Policies    
Net revenue 159 327
Consumer Audio Products    
Business and Summary of Significant Accounting Policies    
Net revenue $ 96 $ 142