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Income Taxes - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2024
Sep. 30, 2023
Oct. 31, 2024
Operating Loss Carryforwards [Line Items]        
Increase in valuation allowance $ (700) $ 2,000 $ 2,534  
Reduction in valuation allowance   212 399  
Liability for uncertain tax positions, excluding any related interest and penalties 22 22 $ 22  
Liability for uncertain tax position, would impact the effective tax rate, if recognized 22 22    
Accrued interest 18 18    
Interest and penalties from continuing operations   1    
Undistributed earnings of foreign subsidiaries 4,824 4,824    
Subsequent event | Discontinued Operations, Disposed of by Sale | C Blade        
Operating Loss Carryforwards [Line Items]        
Share purchase agreement, percentage to be acquired       100.00%
Revenue commissioners, Ireland | Subsidiaries        
Operating Loss Carryforwards [Line Items]        
Operating loss carryforward 5,458 5,458    
Foreign tax authority        
Operating Loss Carryforwards [Line Items]        
Tax credit carryforward 1,724 1,724    
Domestic tax authority        
Operating Loss Carryforwards [Line Items]        
Tax credit carryforward 36,932 36,932    
Interest expense carryforward 2,684 2,684    
Tax credit carryforward amount subject to expiration 9,107 9,107    
Tax credit carryforward amount not subject to expiration 27,825 27,825    
Domestic tax authority | General Business Tax Credit Carryforward        
Operating Loss Carryforwards [Line Items]        
Tax credit carryforward 1,998 1,998    
State and local jurisdiction        
Operating Loss Carryforwards [Line Items]        
Operating loss carryforward 33,418 33,418    
Tax credit carryforward $ 178 $ 178