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PENSION PLAN (Schedule of Plan's Funded Status and Amounts Recognized) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Retirement Benefits [Abstract]        
Actuarial present value of benefit obligations $ 4,990 $ 4,990 $ 5,227 $ 4,990
Change in benefit obligations        
Projected benefit obligation, beginning 4,990 4,390    
Interest cost 158 182    
Actuarial (gain) loss 278 614    
Annuity payments and lump sum distributions (199) (196)    
Projected benefit obligation, end 5,227 4,990    
Change in plan assets        
Fair value of assets, beginning 3,581 3,403    
Actual return on plan assets 172 124    
Employer contributions 25 250    
Annuity payments and lump sum distributions (199) (196)    
Fair value of assets, end $ 3,579 $ 3,581    
Funded status included with other liabilities     $ (1,648) $ (1,409)