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Note 11 - Supplemental Cash Flow Information (Tables)
 9 Months Ended
Mar. 31, 2018
Notes Tables  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
(In thousands)
  
Nine Months Ended
March 31
  
   
2018
    
2017
  
Cash payments:
                
Interest
   $
1,213
     $
66
  
Income taxes
   $
1,556
     $
2,484
  
                 
Non-cash investing and finance activities:
                
Issuance of common shares as compensation
   $
234
     $
331
  
Issuance of stock warrants
    
--
      
575
  
Issuance of common shares to fund deferred compensation plan
   $
354
     $
--