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Subsequent Events (Details)
2 Months Ended 12 Months Ended
Nov. 17, 2023
USD ($)
monthly_installment
Sep. 23, 2022
USD ($)
monthly_installment
Nov. 08, 2021
USD ($)
Oct. 12, 2021
USD ($)
investor
Dec. 14, 2023
USD ($)
shares
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Oct. 25, 2023
USD ($)
investor
Oct. 31, 2021
USD ($)
Subsequent Event [Line Items]                    
Face amount     $ 1,000,000              
Debt interest rate     4.00%              
Debt instrument term     7 years              
Number of monthly installments | monthly_installment   240                
Installment amount   $ 18,298                
Common stock cost           $ 2,223,000 $ 15,097,000 $ 1,794,000    
Subsequent Event                    
Subsequent Event [Line Items]                    
Number of investors returning for cancellation | investor                 26  
Purchase of treasury shares (in shares) | shares         37,954          
Common stock cost         $ 2,100,000          
Unsecured Debt                    
Subsequent Event [Line Items]                    
Number of investors | investor       28            
Face amount       $ 17,000,000            
Debt interest rate       12.00%   12.00%        
Debt instrument term       10 years   10 years        
Unsecured Debt | Debt Instrument, Redemption, Period One                    
Subsequent Event [Line Items]                    
Face amount       $ 9,500,000   $ 9,100,000        
Unsecured Debt | Debt Instrument, Redemption, Period Two                    
Subsequent Event [Line Items]                    
Face amount       $ 7,500,000   $ 6,600,000       $ 7,500,000
Unsecured Debt | Subsequent Event                    
Subsequent Event [Line Items]                    
Number of investors | investor                 26  
Face amount                 $ 15,700,000  
Construction Loans | Subsequent Event                    
Subsequent Event [Line Items]                    
Face amount $ 7,200,000                  
Debt interest rate 8.50%                  
Number of monthly installments | monthly_installment 120                  
Construction Loans | Subsequent Event | Debt Instrument, Redemption, Period One                    
Subsequent Event [Line Items]                    
Period of interest 18 months                  
Construction Loans | Subsequent Event | Debt Instrument, Redemption, Period Two                    
Subsequent Event [Line Items]                    
Number of monthly installments | monthly_installment 101                  
Installment amount $ 63,022