XML 89 R61.htm IDEA: XBRL DOCUMENT v3.23.1
Income Taxes - Additional Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2018
Tax Credit Carryforward [Line Items]      
Current income tax expense (benefit) $ 0 $ 0  
Deferred income tax expense (benefit) 0 0  
Deferred tax assets, Valuation allowance 46,317,000 25,215,000  
Increase in valuation allowance $ 21,100,000    
Federal and state net operating loss carry forwards, Expiration year 2037    
Federal net operating loss carryover     $ 112,700,000
Operating loss carryforwards, Limitation of use Federal net operating losses generated after December 31, 2017 carryover indefinitely but the deductibility of such federal net operating losses is limited to 80% of taxable income.    
Tax credit carry forwards $ 9,289,000 $ 3,940,000  
Tax credit carryforward, Expiration year 2037    
Cumulative change in ownership percentage 50.00%    
Cumulative change in ownership period 3 years    
Research and experimental expenditures capitalized cost amortization period 5 years    
Maximum      
Tax Credit Carryforward [Line Items]      
Operating loss carryforwards limitation rate on taxable income 80.00%    
Federal      
Tax Credit Carryforward [Line Items]      
Federal tax loss carry forwards $ 116,400,000    
Tax credit carry forwards $ 7,200,000    
Foreign      
Tax Credit Carryforward [Line Items]      
Research and experimental expenditures capitalized cost amortization period 15 years    
State      
Tax Credit Carryforward [Line Items]      
Tax credit carry forwards $ 2,600,000    
California      
Tax Credit Carryforward [Line Items]      
Foreign tax loss carry forwards 90,600,000    
Australia      
Tax Credit Carryforward [Line Items]      
Federal net operating loss carryover $ 2,500,000