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4. ACCRUED EXPENSES (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Accrued vacation $ 206,798 $ 196,888
Accrued interest 298,021 239,838
Accrued rent 0 66,349
Accrued loss contingency 33,762 71,744
Lease liability 523,739 0
Other accrued expense 99,867 39,351
Total accrued expenses 1,162,187 $ 614,170
Operating lease liability $ 218,224