Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Details)

v3.22.1
Income Taxes - Additional Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2018
Dec. 31, 2017
Income Taxes        
Operating Loss Carryforwards, Expiration Period 2041      
Operating Loss Carryforwards $ 72,370,000 $ 51,930,000    
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ 3,309,000 $ (958,000)    
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00%    
Unrecognized uncertain income tax $ 0 $ 0    
Domestic Tax Authority [Member]        
Income Taxes        
Operating Loss Carryforwards 639,000     $ 46,054,000.000
Tax Credit Carryforward, Amount     $ 26,316,000  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     80.00%  
Foreign Tax Authority [Member]        
Income Taxes        
Operating Loss Carryforwards 9,405,000      
State and Local Jurisdiction [Member]        
Income Taxes        
Operating Loss Carryforwards 49,894,000 $ 2,037,000.000    
Tax Credit Carryforward, Amount $ 503,000      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 80.00%      
Research Tax Credit Carryforward [Member]        
Income Taxes        
Operating Loss Carryforwards, Expiration Period 2041      
Research Tax Credit Carryforward [Member] | Domestic Tax Authority [Member]        
Income Taxes        
Tax Credit Carryforward, Amount $ 2,456,000