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Note 4 - Property and Equipment, net (Tables)
3 Months Ended
Sep. 30, 2012
Property, Plant and Equipment [Table Text Block]
   
September 30,
2012
   
June 30,
2012
 
             
Land and building
  $ 1,250     $ 1,250  
Leasehold improvements
    1,132       1,132  
Machinery and equipment
    4,837       5,017  
Transportation equipment
    59       59  
      7,278       7,458  
Less: Accumulated depreciation and amortization
    (5,919 )     (6,009 )
Total
  $ 1,359     $ 1,449