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Revenue Recognition (Tables)
3 Months Ended
Sep. 30, 2018
Revenue Recognition [Abstract]  
Schedule product revenues by geographic location

  

    Three Months Ended September 30,  
    2018     2017  
             
U.S   $ 1,273,000     $ 931,000  
Rest-of-the-World     159,000       145,000  
Total net revenue   $ 1,432,000     $ 1,076,000