Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Change in Level 3 (Details)

v3.22.2
Fair Value Measurements - Change in Level 3 (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Loss on revaluation of warrants issued in connection with the February 2021, June 2020, December 2019 and May 2019 financings $ (999) $ (875) $ (899) $ (886)
Warrant Liability        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance     1,550  
Ending balance $ 651   $ 651