Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation - Fair Value of Options Granted using the Black-Scholes option pricing model (Details)

v3.20.2
Share-Based Compensation - Fair Value of Options Granted using the Black-Scholes option pricing model (Details)
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Risk-free interest rate 0.60%  
Dividend yield 0.00% 0.00%
Volatility, Minimum   97.50%
Volatility, Maximum 97.50%  
Expected term (in years) 9 years 9 years
Minimum [Member]    
Risk-free interest rate   2.45%