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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Jun. 30, 2018
Schedules of concentration of business risk
  Year Ended June 30, 
   2018   2017 
Customer A   32%   34%
Customer C   30%   18%
Customer B   24%   22%

 

   Year Ended June 30, 
   2018   2017 
Customer C   35%   18%
Customer A   27%   25%
Customer B   19%   17%
Other   12%   0%
Schedule of inventories
   June 30, 
   2018   2017 
Raw materials  $239,000   $442,000 
Work in process   -    442,000 
Finished goods   1,100,000    738,000 
Reserve        (310,000)
   $1,339,000   $1,312,000
Schedule of fixed assets

   Estimated Useful Lives  June 30, 
   in years  2018   2017 
            
Manufacturing equipment  2 - 5  $213,000   $405,000 
Leasehold improvements  3   112,000    111,000 
Office equipment, furniture and other  2 - 5   344,000    287,000 
Lab equipment  3 - 5   90,000    90,000 
Less accumulated depreciation and amortization      (540,000)   (246,000)
              
Fixed assets, net     $219,000   $647,000 

  

   Year Ended June 30, 
   2018   2017 
           
Depreciation and amortization expense  $294,000   $134,000 
Schedule of patents

   June 30, 
   2018   2017 
         
Patents  $380,000   $380,000 
Less accumulated amortization   (134,000)   (109,000)
Patents, net  $246,000   $271,000 
Schedule of amortization expense
    Year Ended June 30,  
    2018     2017  
                 
Amortization expense   $ 25,000     $ 26,000  
Patents [Member]  
Schedule of future amortization
2019  $25,000 
2020   25,000 
2021   25,000 
2022   25,000 
2023   25,000 
Thereafter   121,000 
   $246,000