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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Net Revenue $ 1,252,658 $ 1,312,466
SteraMist Product [Member]    
Net Revenue 1,029,000 1,092,000
Service & Training [Member]    
Net Revenue 224,000 220,000
United States [Member]    
Net Revenue 1,136,000 945,000
International [Member]    
Net Revenue $ 117,000 $ 367,000