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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Net Revenue $ 1,312,000 $ 1,099,000
SteraMist Product [Member]    
Net Revenue 1,092,000 821,000
Service & Training [Member]    
Net Revenue 220,000 278,000
United States [Member]    
Net Revenue 945,000 848,000
International [Member]    
Net Revenue $ 367,000 $ 251,000