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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Bad debt expense $ 1,000 $ 0 $ 33,000 $ 64,000  
Allowance for doubtful accounts 110,000   110,000   $ 300,000
Inventory reserve 100,000   100,000   100,000
Operating Lease Right of Use Asset 684,457   684,457   0
Lease liability 1,122,244   1,122,244    
Amortization of capitalized software development costs     6,285 0  
Warranty reserve $ 30,000   $ 30,000   $ 30,000
Potentially dilutive securities, convertible debentures 9,259,250   9,259,250   9,814,505
Potentially dilutive securities, outstanding warrants 21,340,523   21,340,523   26,375,611
Potentially dilutive securities, outstanding options 620,000   620,000   320,000
Potentially dilutive securities, convertible Series A preferred stock 510,000   510,000   510,000
Advertising and promotional expenses $ 29,000 44,000 $ 94,000 156,000  
Research and development expenses 88,137 129,924 249,373 372,234  
Shipping and handling costs $ 59,000 $ 52,000 $ 138,000 $ 143,000  
Two Customers [Member] | Accounts Receivable [Member]          
Concentration risk, percentage     22.00%   37.00%
One Customer [Member] | Revenue, Net [Member]          
Concentration risk, percentage 12.00% 32.00% 10.00% 16.00%  
Two Vendors [Member] | Accounts Payable [Member]          
Concentration risk, percentage         27.00%
Three Vendors [Member] | Accounts Payable [Member]          
Concentration risk, percentage         63.00%
One Vendor [Member] | Cost of Sales [Member]          
Concentration risk, percentage 54.00% 80.00% 68.00% 76.00%