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Income Taxes (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Taxes [Line Items]      
Capitalized cost $ 3,100 $ 2,600  
Deferred tax assets, valuation allowance 25,670 24,128  
Net operating loss carryforward $ 34,600    
Net operating loss, percentage 80.00%    
Unrecognized tax benefits $ 4,242 $ 1,606 $ 1,563
China [Member]      
Income Taxes [Line Items]      
Net operating loss carryforwards, foreign 2,200    
Taiwan [Member]      
Income Taxes [Line Items]      
Net operating loss carryforwards, foreign 9,500    
Hong Kong [Member]      
Income Taxes [Line Items]      
Net operating loss carryforwards, foreign 2,300    
State and Local Jurisdiction [Member]      
Income Taxes [Line Items]      
Deferred tax assets, valuation allowance 25,000    
Net operating loss carryforward $ 45,800