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Other Current Assets (Tables)
 12 Months Ended
Jun. 30, 2018
Other Assets [Abstract]  
Schedule of Other Current Assets
Other current assets as of June 30, 2018 and 2017 were comprised of (in thousands):
         
June 30,  2018   2017 
         
Other receivables  $480   $— 
Prepaid insurance   295    179 
Other current assets   1,275    100 
   $2,050   $279