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Notes Payable-Related Party (Tables)
3 Months Ended
Sep. 30, 2018
Notes to Financial Statements  
Notes Payable - Related Party
   September 30, 2018  June 30, 2018
   (in thousands)
    
Unsecured note payable to an officer, with interest at 4.25%, due on demand  $40   $40 
Unsecured note payable to an officer, with interest at 4.25%, due on demand   76    76 
Total unsecured notes payable   116    116 
Less: current portion   (116)   (116)
Long-term unsecured notes payable  $—     $—