Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Additional Information (Details)

v3.21.2
Stockholders' Equity - Additional Information (Details) - USD ($)
12 Months Ended
Mar. 19, 2021
Mar. 10, 2021
Mar. 08, 2021
Mar. 04, 2021
Nov. 23, 2020
Oct. 29, 2020
Sep. 21, 2020
Sep. 03, 2020
Jun. 30, 2021
Jun. 30, 2020
Apr. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Common stock, par value                 $ 0.01 $ 0.01  
Net proceeds form offering                 $ 75,344,000    
Number of shares authorized to be repurchased (in shares)                     500,000
Number of shares repurchased (in shares)                 0    
Dividends declared, date           Oct. 29, 2020   Sep. 03, 2020      
Dividends declared, per common share           $ 1.50   $ 1.50 $ 1.50    
Dividends payable, date of record           Nov. 23, 2020   Sep. 21, 2020      
Dividends paid                 $ 21,200,000    
New awards grants, expiration date                 Nov. 02, 2027    
Share-based payment arrangement, nonvested award, option, cost not yet recognized, amount                 $ 3,226,290    
Decrease in exercise price of each stock option         $ 1.50   $ 1.50        
Incremental stock-based compensation                 0    
Share-based payment arrangement expense tax benefit                 0 $ 0  
Share-based payment arrangement amount capitalized                 0 0  
Options                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based payment arrangement, expense                 $ 1,053,175 838,236  
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition                 2 years 2 months 12 days    
Restricted Stock Units                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based payment arrangement, expense                 $ 120,100 $ 114,520  
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized                 $ 359,736    
2014 Stock Award and Incentive Plan                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Shares granted under the plan (shares)                 94,943    
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    
JMB                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Common stock issued shares, acquisitions 1,047,007                    
Common stock issued value, acquisitions $ 41,600,000                    
Underwriting Agreement                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Sale of common stock       2,500,000              
Common stock, par value       $ 0.01              
Price per share       $ 28.00              
Shares issued in offering   375,000 2,500,000                
Gross proceeds form offering                 80,500,000    
Net proceeds form offering                 75,300,000    
Offering costs                 $ 5,200,000    
Underwriting Agreement | Over-Allotment                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Sale of common stock       375,000              
Common stock, par value       $ 0.01              
Price per share       $ 28.00