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5. Convertible Notes (Tables)
6 Months Ended
Jun. 30, 2020
Debt Disclosure [Abstract]  
Convertible Notes and Warrants
  

June 30,
2020

(unaudited)

  

December 31,

2019

 
Balance due on convertible notes  $893,000   $1,019,000 
Accrued interest   261,000    184,000 
Subtotal   1,154,000    1,203,000 
Convertible note discount   (68,000)   (153,000)
Balance on convertible notes, net of note discounts  $1,086,000   $1,050,000