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Note 5 - Prepaid expenses and Other Current Assets
12 Months Ended
Jun. 30, 2019
Notes to Financial Statements  
Other Current Assets [Text Block]
5.
Prepaid Expenses and Other Current Assets
 
Prepaid expenses and other current assets consisted of the following (in thousands):
 
   
June 30,
 
   
2019
   
2018
 
Prepaid insurance
  $
38
    $
24
 
Other prepaid expenses
   
154
     
241
 
Other current assets
   
27
     
29
 
Other receivables
   
86
     
41
 
Total prepaid expenses and other current assets   $
305
    $
335