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Note 4 - Property and Equipment, net (Tables)
9 Months Ended
Mar. 31, 2013
Property, Plant and Equipment [Table Text Block]
   
March 31,
2013
   
June 30,
2012
 
             
Land and building
  $ 1,250     $ 1,250  
Leasehold improvements
    1,132       1,132  
Machinery and equipment
    4,914       5,017  
Transportation equipment
    59       59  
      7,355       7,458  
Less: Accumulated depreciation and amortization
    (6,056 )     (6,009 )
Total
  $ 1,299     $ 1,449