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Note 11 - Supplemental Cash Flow Information (Tables)
 6 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
(In thousands)
  
Six Months Ended
December 31
  
   
2016
    
2015
  
Cash payments:
                
Interest
   $
21
     $
23
  
Income taxes
   $
2,381
     $
4,650
  
                 
Issuance of common shares as compensation
   $
228
     $
113