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6. Customer Concentrations (Details Narrative)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Two Customers Percentage of Sales    
Percent concentration 81.00%  
Three Customers Percentage of Receivables    
Percent concentration 67.00% 84.00%
Three Customers Percentage of Sales    
Percent concentration   92.00%
One Supplier Percentage of Purchased Inventory    
Percent concentration 99.00% 99.00%