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5. Convertible Notes (Tables)
6 Months Ended
Jun. 30, 2018
Debt Disclosure [Abstract]  
Convertible Notes and Warrants
  

June 30,
2018

(unaudited)

  

December 31

2017

 
Balance due on convertible notes  $524,000   $509,000 
Accrued interest   99,000    71,000 
Subtotal   623,000    580,000 
Convertible note discount   (47,000)   (47,000)
Balance on convertible notes, net of note discounts  $576,000   $533,000