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Note 6 - Commitments and Contingencies (Tables)
3 Months Ended
Sep. 30, 2016
Notes Tables  
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]
   
Operating
 
Related Party
   
Year ending
 
Lease
 
Lease
   
June 30,
 
Commitment
 
Commitment
 
Total
             
2017, remaining
$                 27
 
$             422
 
$         449
2018
 
                 24
 
             563
 
             587
2019
 
                   6
 
             563
 
             569
2020
 
                   1
 
             563
 
             564
2021
 
                  -
 
             563
 
             563
2022
 
                  -
 
             563
 
             563
Thereafter
 
                  -
 
          1,955
 
          1,955
Total
 
$                 58
 
$          5,192
 
$      5,250