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COMMITMENTS AND CONTINGENCIES (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 31, 2016
USD ($)
Commitment
ClassAction
Court
Mar. 31, 2016
USD ($)
Commitment
ClassAction
Court
Sep. 30, 2015
USD ($)
Commitment
COMMITMENTS AND CONTINGENCIES [Abstract]      
Unfunded loan commitments $ 131.4 $ 131.4 $ 158.3
Number of commitments | Commitment 1 1 2
Commitment to sell securities available for sale, amount $ 10.6 $ 10.6  
Commitment to purchase securities, available for sale     $ 7.9
Number of commitment to purchase securities, held to maturity | Commitment     3
Purchase commitment amount, held to maturity     $ 3.0
Loss Contingencies [Line Items]      
Number of class action litigations | ClassAction 4 4  
Number of federal district courts | Court 3 3  
Number of action seek monetary damages | ClassAction   5  
Judgment awarded   $ 6.1  
Inter National Bank [Member]      
Loss Contingencies [Line Items]      
Amount of shortfall in depository account   10.5  
Springbok Services Inc. [Member]      
Loss Contingencies [Line Items]      
Estimate of possible loss $ 1.5 1.5  
Range of reasonably possible loss, minimum 0.0 0.0  
Range of reasonably possible loss, maximum $ 0.3 0.3  
UniRush, LLC [Member]      
Loss Contingencies [Line Items]      
Period of inability of customers of prepaid card product to access product 14 days    
Range of reasonably possible loss, minimum $ 0.0 0.0  
Range of reasonably possible loss, maximum $ 0.1 $ 0.1