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Shareholders' Equity - Narrative (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 18, 2023
USD ($)
day
$ / shares
shares
Sep. 30, 2024
USD ($)
vote
$ / shares
shares
Sep. 30, 2023
USD ($)
$ / shares
shares
Sep. 30, 2022
USD ($)
Dec. 10, 2020
USD ($)
Stockholders Equity Note [Line Items]          
Number of voting rights | vote   1      
Preferred stock, shares outstanding (in shares)   0 676,000    
Preferred stock, par value (in dollars per share) | $ / shares   $ 0.0001 $ 0.0001    
Preferred stock, shares issued (in shares)   0 676,000    
Common stock, par value (in dollars per share) | $ / shares   $ 0.0001 $ 0.0001    
Payments of dividends | $   $ 1,097 $ 5,069 $ 5,159  
Repurchase of common stock authorized by board of directors | $         $ 35,000
Preferred stock, liquidation preference (in dollars per share) | $ / shares   $ 100 $ 100    
Common Stock          
Stockholders Equity Note [Line Items]          
Common stock, par value (in dollars per share) | $ / shares $ 0        
Preferred Stock          
Stockholders Equity Note [Line Items]          
Preferred stock, shares outstanding (in shares)     675,885    
Preferred stock, par value (in dollars per share) | $ / shares   $ 0.0001      
Conversion trigger days | day 20        
Preferred stock, shares issued (in shares) 33,300   675,885    
Excise taxes and other professional service fees | $ $ 300        
Preferred stock cancelled and converted into the right to receive (in shares) 30.03003        
Preferred dividends payable | $ $ 1,100        
Preferred stock conversion of stock, shares converted (in shares) 642,585        
Preferred stock outstanding shares converted into common stock shares (in shares) 19,296,843        
Preferred stock voting cap, percentage 25.00%        
Preferred stock rate   7.50%      
Preferred stock, liquidation preference (in dollars per share) | $ / shares     $ 100    
Preferred Stock | Preferred Stock Including Additional Paid in Capital          
Stockholders Equity Note [Line Items]          
Purchase price | $ $ 11,300