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DEPOSITS (Tables)
 6 Months Ended
Mar. 31, 2023
Deposits [Abstract]  
Schedule of deposits by type of account
   March 31,   September 30, 
   2023   2022 
   (In thousands) 
         
Demand accounts  $198,031   $182,417 
Savings accounts   72,416    81,850 
NOW accounts   95,322    98,643 
Money market accounts   242,402    222,214 
Certificates of deposit   77,463    69,929 
Retirement certificates   12,257    12,680 
Total deposits  $697,891   $667,733