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Note 5 - Property and Equipment (Tables)
 12 Months Ended
Jun. 30, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
June 30,
   
2016
  
2015
Land and building
  
$ 1,250
  
$ 1,250
Leasehold improvements
  
           1,210
  
           1,159
Machinery and equipment
  
           5,536
  
           5,362
Transportation equipment
  
                11
  
                16
   
           8,007
  
           7,787
Less: Accumulated depreciation
        
         and amortization
  
         (6,440)
  
         (6,414)
Total
  
$ 1,567
  
$ 1,373