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4. ACCRUED EXPENSES (Tables)
 3 Months Ended
Mar. 31, 2020
Payables and Accruals [Abstract]  
Accrued expense schedule
   March 31,  December 31,
   2020  2019
Lease liability  $218,225   $349,160 
Accrued vacation   190,130    175,231 
Accrued salaries   179,623    75,829 
Accrued interest   –    48,884 
Other accrued expense   14,818    5,171 
Total accrued expenses  $602,796   $654,275