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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Net Revenue $ 1,600,387 $ 1,947,570 $ 4,491,719 $ 4,506,508
United States [Member]        
Net Revenue 1,288,000 1,754,000 3,852,000 3,545,000
International [Member]        
Net Revenue 312,000 194,000 640,000 962,000
SteraMist Product [Member]        
Net Revenue 928,000 1,613,000 3,461,000 3,723,000
Service & Training [Member]        
Net Revenue $ 672,000 $ 335,000 $ 1,031,000 $ 784,000