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Related Party Transactions (Details)
$ in Thousands
12 Months Ended
Jun. 30, 2020
USD ($)
member
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Related Party Transactions [Abstract]      
Number of directors | member 2    
Directors services $ 310 $ 347 $ 421
Directors services, prepayment $ 51