Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of changes in fair value of the Company's warrant liability measured at fair value using significant unobservable inputs (Leve3) (Details)

v3.21.2
Fair Value Measurements - Summary of changes in fair value of the Company's warrant liability measured at fair value using significant unobservable inputs (Leve3) (Details) - Warrant - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Beginning balance $ 8,000 $ 5,000 $ 8,000 $ 24,000
Additions 0 0 0 0
Change in fair value 0 (5,000) 0 (24,000)
Ending balance $ 8,000 $ 0 $ 8,000 $ 0