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Revenue Recognition (Tables)
9 Months Ended
Mar. 31, 2020
Revenue from Contract with Customer [Abstract]  
Schedule of product revenues by geographic location
    Three Months Ended March 31,     Nine Months Ended March 31,  
    2020     2019     2020     2019  
U.S.   $ 7,273,000     $ 2,024,000     $ 11,582,000     $ 5,025,000  
International     883,000       348,000       1,189,000       574,000  
Total net revenue   $ 8,156,000     $ 2,372,000     $ 12,771,000     $ 5,599,000