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Related Party Transactions (Details)
$ in Thousands
12 Months Ended
Jun. 30, 2019
USD ($)
member
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Related Party Transactions [Abstract]      
Number of directors | member 2    
Directors services $ 347 $ 421 $ 374
Directors services, prepayment $ 51 $ 75