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Stock Options - Weighted Average Assumptions of Black-Scholes Option Pricing Model to Estimate Fair Value of Options Granted (Details)
6 Months Ended
Dec. 31, 2020
Dec. 31, 2019
2012 Employee Stock Option Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Expected lives   10 years
Expected dividend yields   0.00%
2012 Employee Stock Option Plan | Minimum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Risk-free interest rates   1.80%
Expected volatility   45.00%
2012 Employee Stock Option Plan | Maximum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Risk-free interest rates   2.10%
Expected volatility   46.00%
2020 Non-Employee Stock Option Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Risk-free interest rates 0.62%  
Expected lives 10 years  
Expected volatility 45.00%  
2018 Non-Employee Stock Option Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Risk-free interest rates   1.80%
Expected lives   10 years
Expected volatility   45.00%
Expected dividend yields   0.00%