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PATENT COSTS (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Finite-lived Intangible Assets          
Impairment     $ 0   $ 0
Capitalized patent costs $ 0   0    
Net Patent Costs          
Patents 1,272,625   1,272,625   1,272,625
Accumulated amortization (740,636)   (740,636)   (699,348)
Net Patent Costs 531,989   531,989   $ 573,277
Estimated aggregate amortization expense          
July 1, 2020 - December 31, 2020 41,300   41,300    
2021 65,400   65,400    
2022 65,400   65,400    
2023 65,400   65,400    
2024 65,400   65,400    
Thereafter 229,100   229,100    
Patents          
Finite-lived Intangible Assets          
Capitalized patent costs   $ 93,000   $ 93,000  
Net Patent Costs          
Amortization expense for patents $ 20,000 $ 24,000 $ 41,000 $ 43,000  
Patents | Minimum          
Finite-lived Intangible Assets          
Amortization period for intangible assets     2 years    
Patents | Maximum          
Finite-lived Intangible Assets          
Amortization period for intangible assets     10 years