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7. STOCKHOLDERS' EQUITY (Tables) - Options [Member]
12 Months Ended
Dec. 31, 2017
Summary of stock options outstanding
    December 31, 2017     December 31, 2016  
     Number of Options      Weighted Average Exercise Price      Number of Options      Weighted Average Exercise Price  
Outstanding, beginning of period     200,000     $ 0.76       100,000     $ 0.96  
Granted                 100,000       0.55  
Exercised                        
Outstanding, end of period     200,000     $ 0.76       200,000     $ 0.76  
Options outstanding and exercisable by price range
  Outstanding Options    

Average

Weighted

    Exercisable Options  
  Range     Number    

Remaining

Contractual

Life in Years

    Number    

Weighted

Average

Exercise Price

 
  $ 2.10       40,000       2.01       40,000     $ 2.10  
  $ 0.05       20,000       3.03       20,000     $ 0.05  
  $ 0.27       40,000       7.01       40,000     $ 0.27  
  $ 0.55       100,000       8.10       100,000     $ 0.55  
            200,000       6.16       200,000     $ 0.76  
Summary of outstanding common stock warrants
    December 31, 2017     December 31, 2016  
     Number of Warrants      Weighted Average Exercise Price      Number of Warrants      Weighted Average Exercise Price  
Outstanding, beginning of period     37,076,413     $ 0.31       35,676,413     $ 0.30  
Granted     4,774,998       0.24       1,400,000       0.42  
Exercised     (975,000 )     0.05              
Expired     (5,375,000 )     0.13              
Outstanding, end of period     35,501,411     $ 0.33       37,076,413     $ 0.31  
Warrants outstanding and exercisable by price range
  Outstanding Warrants           Exercisable Warrants  
  Range     Number    

Average

Weighted

Remaining

Contractual

Life in Years

    Number    

Weighted

Average

Exercise Price

 
  $ 0.10       265,000       4.54       265,000     $ 0.10  
  $ 0.12       7,500,000       3.28       7,500,000     $ 0.12  
  $ 0.15       250,000       0.01       250,000     $ 0.15  
  $ 0.17       10,000       4.82       10,000     $ 0.17  
  $ 0.26       100,000       0.49       100,000     $ 0.26  
  $ 0.27       250,000       4.00       250,000     $ 0.27  
  $ 0.29       10,125,613       2.80       10,125,613     $ 0.29  
  $ 0.30       11,925,800       0.75       11,925,800     $ 0.30  
  $ 0.32       250,000       3.75       250,000     $ 0.32  
  $ 0.33       75,000       0.75       75,000     $ 0.33  
  $ 0.42       250,000       3.50       250,000     $ 0.42  
  $ 0.50       325,000       2.57       325,000     $ 0.50  
  $ 0.55       100,000       3.08       100,000     $ 0.55  
  $ 0.62       75,000       0.55       75,000     $ 0.62  
  $ 0.69       999,998       2.21       999,998     $ 0.69  
  $ 1.00       3,000,000       2.34       3,000,000     $ 1.00  
            35,501,411       2.15       35,501,411     $ 0.33