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FAIR VALUE DISCLOSURES (Schedule of Additional Quantitative Information About Assets Measured at Fair Value) (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Jun. 30, 2017
Sep. 30, 2016
Other Real Estate Owned [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Valuation techniques and Unobservable Input [1],[2] Appraisal of collateral; Liquidation expenses Appraisal of collateral; Liquidation expenses
Impaired Loans [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Valuation techniques and Unobservable Input [1],[2]   Appraisal of collateral; Appraisal adjustments
Fair Value Measured on a Nonrecurring Basis [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value estimate $ 11,840 $ 13,040
Fair Value Measured on a Nonrecurring Basis [Member] | Other Real Estate Owned [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value estimate $ 11,840 $ 12,082
Fair Value Measured on a Nonrecurring Basis [Member] | Other Real Estate Owned [Member] | Minimum [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (8.00%) (3.90%)
Fair Value Measured on a Nonrecurring Basis [Member] | Other Real Estate Owned [Member] | Maximum [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (49.20%) (41.60%)
Fair Value Measured on a Nonrecurring Basis [Member] | Other Real Estate Owned [Member] | Weighted Average [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral (24.50%) (22.40%)
Fair Value Measured on a Nonrecurring Basis [Member] | Impaired Loans [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value estimate   $ 958
Fair Value Measured on a Nonrecurring Basis [Member] | Impaired Loans [Member] | Minimum [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral   (5.80%)
Fair Value Measured on a Nonrecurring Basis [Member] | Impaired Loans [Member] | Maximum [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral   (36.50%)
Fair Value Measured on a Nonrecurring Basis [Member] | Impaired Loans [Member] | Weighted Average [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair value input- appraisal of collateral   (19.50%)
[1] 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.
[2] Fair value is generally determined through independent appraisals for the underlying collateral, which generally include various level 3 inputs which are not identifiable.