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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Net Revenue $ 1,638,674 $ 1,246,472 $ 2,891,332 $ 2,558,938
United States [Member]        
Net Revenue 1,428,000 850,000 2,563,000 1,801,000
International [Member]        
Net Revenue 211,000 396,000 328,000 758,000
SteraMist Product [Member]        
Net Revenue 1,504,000 1,018,000 2,533,000 2,110,000
Service & Training [Member]        
Net Revenue $ 135,000 $ 228,000 $ 358,000 $ 449,000