Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
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 $ 15,560 $ 15,536 $ 13,206
Other Nonoperating Income (Expense)      
Foreign Currency [Abstract]      
Exchange loss due to highly inflationary accounting 1,360 1,473  
Turkish Subsidiaries      
Foreign Currency [Abstract]      
Net monetary assets $ 4,271 $ 5,022  
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