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Loans Held For Investment: Summary of Loans Held for Investment (Parentheticals) (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Jun. 30, 2018
Commercial business loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Undisbursed lines of credit $ 1,500 $ 495
Consumer loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Undisbursed lines of credit $ 497 $ 503