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
Deferred Tax Assets, Valuation Allowance $ 27,820,000 $ 26,939,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00%
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ 27,800,000 $ 26,900,000
Research Tax Credit Carryforward    
Tax Credit Carryforward, Amount 2,600,000  
Domestic Tax Authority    
Operating Loss Carryforwards $ 71,200,000  
Operating Loss Carry forward, Expire Period 2034  
State and Local Jurisdiction    
Operating Loss Carryforwards $ 134,400,000  
Operating Loss Carry forward, Expire Period 2028  
Indefinite Carryforward | Domestic Tax Authority    
Operating Loss Carryforwards $ 56,700,000  
Indefinite Carryforward | State and Local Jurisdiction    
Operating Loss Carryforwards $ 14,500,000