Annual report [Section 13 and 15(d), not S-K Item 405]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

v3.25.3
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2023
Trade Receivables and Allowance for Doubtful Accounts [Abstract]      
Period past due for which a finance charge may be applied 30 days    
Research and Development Expenses [Abstract]      
Research and development costs $ 16,733 $ 15,960 $ 15,560
Other Nonoperating Income (Expense)      
Foreign Currency [Abstract]      
Exchange loss due to highly inflationary accounting 1,135 1,027 $ 1,360
Turkish Subsidiaries      
Foreign Currency [Abstract]      
Net monetary assets $ 2,109 $ 5,327  
Minimum      
Goodwill and Other Intangible Assets [Abstract]      
Useful lives of intangibles 2 years    
Maximum      
Goodwill and Other Intangible Assets [Abstract]      
Useful lives of intangibles 15 years    
Buildings | Minimum      
Property, Plant and Equipment [Abstract]      
Useful lives of PPE 10 years    
Buildings | Maximum      
Property, Plant and Equipment [Abstract]      
Useful lives of PPE 45 years    
Machinery, equipment and other | Minimum      
Property, Plant and Equipment [Abstract]      
Useful lives of PPE 3 years    
Machinery, equipment and other | Maximum      
Property, Plant and Equipment [Abstract]      
Useful lives of PPE 12 years