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Off-Balance Sheet Financial Instruments and Gurantees (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Jun. 30, 2018
Loss Contingencies [Line Items]    
Financial instrument commitments $ 126,100 $ 121,372
Commitments to grant loans [Member]    
Loss Contingencies [Line Items]    
Financial instrument commitments 49,936 43,280
Unfunded commitments under lines of credit [Member]    
Loss Contingencies [Line Items]    
Financial instrument commitments 71,859 72,359
Standby letters of credit [Member]    
Loss Contingencies [Line Items]    
Financial instrument commitments $ 4,305 $ 5,733