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Note 8 - Contingencies (Tables)
9 Months Ended
Mar. 31, 2015
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
 
 
Nine months
Ended
March 31,
 
 
 
2015
 
 
2014
 
Beginning balance
  $ 159     $ 190  
Cost of warranty claims
    (39
)
    (44
)
Accruals for product warranties
    44       20  
Ending balance
  $ 164     $ 166