Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Narrative (Details)

v3.21.4
Stock-Based Compensation - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 14, 2020
Sep. 30, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Options to purchase shares (in shares)     10,920    
Exercise price (in dollars per share)     $ 10.01    
Contractual term     5 years 8 months 12 days 6 years 9 months 18 days  
Grant date fair value (in dollars per share)     $ 5.49    
Stock-based compensation expense     $ 1,013 $ 490 $ 317
Compensation costs to be amortized     0    
Options | 2015 Equity Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Options to purchase shares (in shares) 10,920        
Exercise price (in dollars per share) $ 10.01        
Contractual term 10 years        
Grant date fair value (in dollars per share) $ 60,000        
Options | 2015 Equity Incentive Plan | Vesting period one          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage 25.00%        
Award vesting period 1 year        
Options | 2015 Equity Incentive Plan | Vesting period two          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage 75.00%        
Award vesting period 36 months        
Options | Modified 2015 Equity Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vested (in shares) 2,684,026        
Accelerated cost $ 0        
Restricted Stock Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense     8,608 $ 0 $ 0
Compensation costs to be amortized     $ 10,609    
Granted (in share)     790,497    
Weighted average amortization period     1 year 11 months 15 days    
Restricted Stock Awards | 2015 Equity Incentive Plan | Employees, Officers, Directors, Consultants, And Service Providers          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in share) 739,537        
Restricted Stock Awards | 2015 Equity Incentive Plan | Director          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in share) 50,960        
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in share)     1,517,881    
Restricted Stock Units | 2021 Equity Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in share)   1,517,881      
Restricted Stock And Restricted Stock Units | 2021 Equity Incentive Plan | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period   4 years