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COMMITMENTS AND CONTINGENCIES (Details)
3 Months Ended
Jan. 07, 2016
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2014
USD ($)
Oct. 14, 2016
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2015
company
Loss Contingencies [Line Items]            
Number of federal district courts | company           3
Number of identified limited liability companies | company           3
Damages awarded $ 6,100,000          
Unfunded loan commitments   $ 228,900,000     $ 182,900,000  
Inter National Bank [Member]            
Loss Contingencies [Line Items]            
Amount of shortfall in depository account     $ 10,500,000      
UniRush, LLC [Member]            
Loss Contingencies [Line Items]            
Period of inability of customers of prepaid card product to access product   14 days        
Card Limited, LLC v. MetaBank dba Meta Payment Systems [Member]            
Loss Contingencies [Line Items]            
Estimate of possible loss       $ 1,579,398