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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Net Revenue $ 4,291,589 $ 1,600,387 $ 21,373,504 $ 4,491,719
United States        
Net Revenue 3,446,000 1,288,000 15,437,000 3,852,000
International        
Net Revenue 846,000 312,000 5,937,000 640,000
SteraMist Product        
Net Revenue 3,677,000 928,000 19,557,000 3,461,000
Service & Training        
Net Revenue $ 615,000 $ 672,000 $ 1,817,000 $ 1,031,000