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14. CUSTOMER CONCENTRATION (Details Narrative)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Two Customers [Member] | Accounts Receivable [Member]          
Concentration risk percentage         37.00%
Two Customers [Member] | Revenue, Net [Member]          
Concentration risk percentage   26.00% 29.00%    
One Customer [Member] | Revenue, Net [Member]          
Concentration risk percentage 26.00%     12.00%