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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Accounting Policies [Abstract]    
Commercial relationships $ 500  
Criticized relationships 250  
Revenue from contracts with customers included in service charges 901 $ 1,400
Revenue from contracts with customers included in other operating income $ 106 $ 148