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Patents (Tables)
9 Months Ended
Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of patents
    As of March 31,     As of June 30,  
    2019     2018  
Patents   $ 380,000     $ 380,000  
Less accumulated amortization     (153,000 )     (134,000 )
   Patents, net   $ 227,000     $ 246,000  
Schedule of amortization expense
    Three Months Ended March 31,     Nine Months Ended March 31,  
    2019     2018     2019     2018  
 Amortization expense   $ 6,000     $ 6,000     $ 19,000     $ 19,000