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SUMMARY OF SIGNIFICANT ACCOUNT POLICIES (Details 4) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Components of total lease costs:    
Operating lease expense $ 148,141 $ 296,226
Short-term lease costs [1] 14,963 27,680
Total lease costs $ 163,104 $ 323,906
[1] Represents short-term leases which are immaterial.