Annual report pursuant to Section 13 and 15(d)

Fair Value Measurement - Schedule of Liabilities Measured at Fair Value (Details)

v3.21.1
Fair Value Measurement - Schedule of Liabilities Measured at Fair Value (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Convertible Bridge Notes $ 3,598,000 $ 2,473,000
Total 3,598,000 2,473,000
Level 1 [Member]    
Convertible Bridge Notes
Total
Level 2 [Member]    
Convertible Bridge Notes
Total
Level 3 [Member]    
Convertible Bridge Notes 2,473,000
Total $ 2,473,000