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FAIR VALUE DISCLOSURES (Schedule of Additional Quantitative Information About Assets Measured at Fair Value) (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Mar. 31, 2022
Sep. 30, 2021
Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value estimate $ 9,448 $ 11,770
Impaired Loans [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Valuation techniques Appraisal of collateral [1] Appraisal of collateral [2]
Unobservable Input Appraisal adjustments [1] Appraisal adjustments [2]
Impaired Loans [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value estimate $ 8,799 $ 11,134
Impaired Loans [Member] | Fair Value, Nonrecurring [Member] | Minimum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (8.00%)  
Impaired Loans [Member] | Fair Value, Nonrecurring [Member] | Maximum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (42.80%) (42.80%)
Impaired Loans [Member] | Fair Value, Nonrecurring [Member] | Weighted Average [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (27.00%) (23.60%)
Impaired Loans [Member] | Fair Value, Nonrecurring [Member] | Minimum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral   (8.00%)
Other Real Estate Owned [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Valuation techniques Appraisal of collateral [1] Appraisal of collateral [2]
Unobservable Input Liquidation expenses [1] Liquidation expenses [2]
Other Real Estate Owned [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value estimate $ 649 $ 636
Other Real Estate Owned [Member] | Fair Value, Nonrecurring [Member] | Minimum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (28.00%) (31.20%)
Other Real Estate Owned [Member] | Fair Value, Nonrecurring [Member] | Maximum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (45.50%) (45.50%)
Other Real Estate Owned [Member] | Fair Value, Nonrecurring [Member] | Weighted Average [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (37.90%) (39.40%)
[1] Fair value is generally determined through independent appraisals for the underlying collateral, which generally include various level 3 inputs which are not identifiable.
[2] Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.