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Note 11 - Supplemental Cash Flow Information (Tables)
 3 Months Ended
Sep. 30, 2018
Notes Tables  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
(In thousands)
  
Three Months Ended
September 30
  
   
2018
    
2017
  
Cash payments:
                
Interest
   $
518
     $
382
  
Income taxes
   $
(39
 )   $
--
  
                 
Non-cash investing and financing activities:
                
Issuance of common shares as compensation
   $
90
     $
78
  
Issuance of common shares to fund deferred compensation plan
   $
127
     $
191