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Foreign Operations (Tables)
12 Months Ended
Jun. 30, 2018
Foreign Operations Tables Abstract  
Assets and net assets in foreign countries
    China   Latvia
   

June 30,

2018

 

June 30,

2017

 

June 30,

2018

 

June 30,

2017

Assets    $14.7 million    $14.0 million    $6.4 million    $6.1 million
Net assets    $12.6 million    $12.3 milllion    $5.9 million    $6.0 million