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FAIR VALUE MEASUREMENT (Tables)
6 Months Ended
Jun. 30, 2022
2024 Notes  
Schedule of Fair Value Assumptions

    

2024 Notes

Stock price (USD)

 

1.09

Expected term

 

2.18

Risk free rate

 

2.94

%

Volatility

 

75.34

%

Yield

 

13.85

%