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Revenues from Contracts with Customers (Details 1) - USD ($)
 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Total net revenue $ 27,632,000 $ 7,320,000
U.S.    
Total net revenue 24,980,000 6,462,000
Rest-of-the-World    
Total net revenue $ 2,652,000 $ 858,000