XML 30 R16.htm IDEA: XBRL DOCUMENT v3.22.2.2
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

%