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Note 9 - Commitments and Contingencies (Tables)
6 Months Ended
Dec. 31, 2018
Notes Tables  
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]
   
December 31, 2018
   
June 30, 2018
 
   
(Dollars in thousands)
 
Commitments to grant loans
  $
6,128
    $
20,431
 
Unfunded commitments under lines of credit
   
23,829
     
29,478
 
Standby letters of credit
   
3,183
     
3,183