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4. LEASES (Tables)
6 Months Ended
Jun. 30, 2019
Leases [Abstract]  
Maturity of operating lease liabilities
    June 30, 2019  
2019   $ 53,684  
2020     108,591  
2021     54,940  
2022     -  
Total lease payments     217,215  
Less imputed interest     (12,564 )
Present value of lease liabilities   $ 204,651