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Note 9 - Concentrations (Tables)
12 Months Ended
Jun. 30, 2016
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
   
2016
   
2015
 
AXP
  $ 6,932     $ 6,612  
BioArchive
    2,465       4,241  
Manual Disposables
    1,507       1,810  
Bone Marrow
    459       2,621  
Other
    566       758  
    $ 11,929     $ 16,042  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   
2016
   
2015
 
United States
  $ 5,122     $ 8,428  
China
    2,797       2,500  
Asia - other
    1,955       1,955  
Europe
    1,343       2,147  
Other
    712       1,012  
    $ 11,929     $ 16,042  
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
   
June 30, 2016
   
June 30, 2015
 
United States
  $ 2,030     $ 1,409  
Costa Rica
    367       594  
India
    279       296  
China
    225       524  
All other countries
    61       114  
Total equipment, net
  $ 2,962     $ 2,937