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Income Taxes - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating Loss Carryforwards [Line Items]      
Federal provision for income taxes $ 0 $ 0  
State provision for income taxes 0 0  
Provision for income taxes 0 0 $ 0
Deferred tax assets 51,832,000 16,464,000  
Valuation allowance increased 35,300,000    
U.S federal net operating loss carryforwards 144,500,000    
State net operating loss carryforwards 123,400,000    
Operating loss carryforwards $ 141,300,000    
Carryforwards expiration year 2036    
Statutory federal income tax rate 21.00%    
Increase or decrease in unrecognized tax benefits $ 0 0  
Unrecognized tax benefits that would affect effective tax rate $ 0 $ 0  
Federal      
Operating Loss Carryforwards [Line Items]      
Carryforwards expiration year 2036    
Research and development tax credit carryforwards $ 6,100,000