Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Details)

v3.21.2
Stockholders' Equity - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended
Sep. 24, 2021
Sep. 20, 2021
Aug. 30, 2021
Aug. 27, 2021
Mar. 04, 2021
Mar. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Apr. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Sale of equity         $ 150,000,000        
Remaining securities available for issuance           $ 69,500,000      
Number of shares authorized to be repurchased (in shares)                 500,000
Number of shares repurchased (in shares)             0    
Dividends declared, date     Aug. 30, 2021            
Dividends declared, per common share     $ 2.00       $ 2.00 $ 1.50  
Dividends payable, date of record     Sep. 20, 2021            
Dividends paid $ 22,600,000                
New awards grants, expiration date             Nov. 02, 2027    
Share-based payment arrangement, nonvested award, option, cost not yet recognized, amount             $ 2,881,679    
Decrease in exercise price of each stock option   $ 2.00              
Incremental stock-based compensation             0    
Options                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based payment arrangement, expense             $ 348,471 $ 178,428  
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition             2 years    
Restricted Stock Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based payment arrangement, expense             $ 124,815 $ 0  
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized             $ 239,899    
2014 Stock Award and Incentive Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares granted under the plan (shares)             94,887    
Expiration period (in years)             10 years    
Maximum amount of shares per employee (shares)             250,000    
2014 Stock Award and Incentive Plan | Director                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Maximum grant date fair value             $ 300,000    
2014 Stock Award and Incentive Plan | Non-employee Chairman of Board                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Maximum grant date fair value             $ 600,000    
Company C                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Common stock issued shares, acquisitions       61,590