Fair Value Measurement (Tables)
 12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Schedule of fair value measurements of derivative liability on a recurring basis
     
  Valuation techniques Unobservable inputs Range of rates
Derivative liability in 2020 related to Streeterville convertible bond Binomial model Expected term 0.84-1.00
Risk-free interest rate 0.07%-0.12%
Expected volatility 111.94%-119.90%
Expected dividend yield 0
Fair value measurements of warrants
     
  Valuation techniques Unobservable inputs Range of rates
Warrants issued with ordinary shares in 2020 Binomial model Expected term
Risk-free interest rate
Expected volatility
Expected dividend yield

5 years

0.58%-0.77%

82.20%-82.36%

0