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Stockholders' Equity - Estimate the fair values (Details)
9 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Expected dividend yield 0.00% 0.00%
Expected volatility 56.00%  
Minimum    
Risk-free interest rate 0.92% 0.37%
Expected life (in years) 5 years 5 years
Expected volatility 56.00% 57.00%
Maximum    
Risk-free interest rate 1.81% 0.73%
Expected life (in years) 6 years 6 years
Expected volatility   63.00%