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1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 3 Months Ended 12 Months Ended
Sep. 30, 2019
Jun. 30, 2019
Accounting Policies [Abstract]    
Disaggregation of revenue
   Three Months
Ended September 30,		 
   2019   2018 
Engineering Design Services  $409,728   $511,898 
Optical Components   1,416,244    298,057 
Medical Device Products & Assemblies   689,012    749,503 
Total Revenues  $2,514,984   $1,559,458 
   2019   2018 
Engineering Design Services  $1,313,543   $1,283,534 
Optical Components   1,821,889    1,226,190 
Medical Device Products and Assemblies   3,668,737    1,528,324 
Total Revenues  $6,804,169   $4,038,048 
Schedule of Inventory
   September 30,
2019		   June 30,
2019		 
Raw Materials  $693,257   $578,856 
Work-In-Progress   588,439    409,019 
Finished Goods   790,156    746,729 
Total Inventories  $2,071,852   $1,734,604 
   2019   2018 
Raw material  $578,856   $500,908 
Work-in-progress   409,019    434,536 
Finished goods   746,729    208,624 
   $1,734,604   $1,144,068 
Estimated Useful Lives of Property and Equipment  
Asset Classification  Estimated Useful Life
Machinery and equipment  2-7 years
Leasehold improvements  Shorter of lease term or estimated useful life
Furniture and fixtures  5 years
Vehicles  3 years
Percent schedule of entity wide revenues by percentage  
   2019   2018 
Customer A   8%    16% 
Customer B   6%    14% 
Customer C   18%    8% 
Customer D   13%    5% 
Customer E   11%    4% 
All Others   44%    53% 
    100%    100% 
Schedule of earnings per share
   Three Months
Ended September 30,		 
   2019   2018 
Net Loss – Basic and Diluted  $(86,110)  $(299,285)
           
Basic and Diluted Weighted Average Shares Outstanding   12,832,389    10,261,269 
           
Loss Per Share          
Basic and Diluted  $(0.01)  $(0.03)
   Year Ended June 30 
   2019   2018 
Net Loss– Basic and Diluted  $(614,871)  $(351,390)
           
Basic Weighted Average Shares Outstanding   11,486,079    9,826,151 
Potentially Dilutive Securities   –    – 
Diluted Weighted Average Shares Outstanding   11,486,079    9,826,151 
           
Loss Per Share          
Basic  $(0.05)  $(0.04)
Diluted  $(0.05)  $(0.04)
Warranty reserve activity  
   2019   2018 
Balance at beginning of period  $25,000   $25,000 
Provision for warranty claims   5,791    6,109 
Warranty claims incurred   (5,791)   (6,109)
Balance at end of period  $25,000   $25,000