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7. STOCKHOLDERS' EQUITY (Tables)
6 Months Ended
Jun. 30, 2018
Statement of Stockholders' Equity [Abstract]  
Summary of stock options outstanding
   

June 30, 2018

(Unaudited)

   

December 31,

2017

 
    Number of Options     Weighted Average Exercise Price     Number of Options     Weighted Average Exercise Price  
Outstanding, beginning of period     200,000     $ 0.76       200,000     $ 0.76  
Granted     120,000     $ 0.12              
Exercised                        
Outstanding, end of period     320,000     $ 0.52       200,000     $ 0.76  
Options outstanding and exercisable by price range
Outstanding Options     Average     Exercisable Options
Weighted
Range     Number     Remaining     Number     Weighted
Contractual Average
Life in Years Exercise Price
                         
$ 0.05       20,000       2.78       20,000     $ 0.05
$ 0.1       20,000       9.58       20,000     $ 0.1
$ 0.12       100,000       4.52       100,000     $ 0.12
$ 0.27       40,000       6.51       40,000     $ 0.27
$ 0.55       100,000       7.6       100,000     $ 0.55
$ 2.1       40,000       1.51       40,000     $ 2.1
          320,000       5.55       320,000     $ 0.52
Summary of stock warrants outstanding
    June 30, 2018 (Unaudited)     December 31, 2017  
     Number of Warrants      Weighted Average Exercise Price      Number of Warrants      Weighted Average Exercise Price  
Outstanding, beginning of period     35,501,411     $ 0.33       37,076,413     $ 0.31  
Granted     -       -       4,774,998       0.24  
Exercised     -       -       (975,000 )     0.05  
Expired     (425,000 )     (0.24 )     (5,375,000 )     0.13  
Outstanding, end of period     35,076,411     $ 0.33       35,501,411     $ 0.33  
Warrants outstanding and exercisable by price range
  Outstanding Warrants           Exercisable Warrants  
  Exercise Price     Number    

Average

Weighted

Remaining

Contractual

Life in Years

    Number    

Weighted

Average

Exercise Price

 
  $ 0.10       265,000       4.04       265,000     $ 0.10  
  $ 0.12       7,500,000       2.78       7,500,000     $ 0.12  
  $ 0.17       10,000       4.32       10,000     $ 0.17  
  $ 0.27       250,000       3.50       250,000     $ 0.27  
  $ 0.29       10,125,613       2.30       10,125,613     $ 0.29  
  $ 0.30       11,925,800       0.25       11,925,800     $ 0.30  
  $ 0.32       250,000       3.25       250,000     $ 0.32  
  $ 0.33       75,000       0.25       75,000     $ 0.33  
  $ 0.42       250,000       3.00       250,000     $ 0.42  
  $ 0.50       250,000       2.75       250,000     $ 0.50  
  $ 0.55       100,000       2.58       100,000     $ 0.55  
  $ 0.62       75,000       0.05       75,000     $ 0.62  
  $ 0.69       999,998       1.71       999,998     $ 0.69  
  $ 1.00       3,000,000       1.84       3,000,000     $ 1.00  
            35,076,411       1.82       35,076,411     $ 0.33