Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Details)

v3.22.1
Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Deferred Tax Assets, Valuation Allowance $ 51,454 $ 37,275
Unrecognized tax benefits interest and penalties accrued 0 $ 0
Research and Development Credit Carryforwards [Member]    
Tax Credit Carryforward, Amount 1,200  
Orphan Drug Credit Carryforwards [Member]    
Tax Credit Carryforward, Amount $ 1,000  
Tax Credit Carryforward, Expiration Date Dec. 31, 2034  
Federal [Member]    
Operating Loss Carryforwards $ 143,600  
Operating loss carryforwards indefinitely amount 112,600  
Operating loss carryforwards remaining amount $ 31,200  
Operating Loss Carry forwards Expiration Period 2034  
State and Local Jurisdiction [Member]    
Operating Loss Carryforwards $ 136,100  
Operating loss carryforwards indefinitely amount 1,600  
Operating loss carryforwards remaining amount $ 134,500  
Operating Loss Carry forwards Expiration Period 2034