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COMMITMENTS AND CONTINGENCIES (Details)
3 Months Ended
Jan. 07, 2016
USD ($)
Dec. 31, 2014
USD ($)
Jun. 30, 2017
USD ($)
Oct. 14, 2016
USD ($)
Sep. 30, 2016
USD ($)
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     $ 263,500,000   $ 182,900,000
Inter National Bank [Member]          
Loss Contingencies [Line Items]          
Amount of shortfall in depository account   $ 10,500,000      
Card Limited, LLC v. MetaBank dba Meta Payment Systems [Member]          
Loss Contingencies [Line Items]          
Estimate of possible loss       $ 1,579,398