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Directors Fees - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2023
Mar. 31, 2022
Jun. 30, 2022
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]          
Directors' fees $ 75,625 $ 75,625 $ 226,875 $ 226,875  
Directors' fees payable $ 13,630   13,630   $ 20,780
Board of Directors Chairman          
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]          
Reimbursement expense     1,000    
Independent Director          
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]          
Annual fees     75,000    
Reimbursement expense     2,500    
Chair Person Of Audit Committee          
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]          
Annual fees     7,500    
Valuation Committee          
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]          
Annual fees     2,500    
Nominating And Corporate Governance Committee          
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]          
Annual fees     2,500    
Compensation Committee          
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]          
Annual fees     $ 2,500