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5. Convertible Notes (Tables)
12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Convertible Notes and Warrants
   December 31, 
   2019   2018 
         
Convertible notes  $1,019,000   $1,886,000 
Accrued interest   184,000    123,000 
Subtotal   1,203,000    2,009,000 
Convertible note discount   (153,000)   (1,100,000)
Total  $1,050,000   $909,000