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STOCKHOLDERS' EQUITY (Tables)
 12 Months Ended
Dec. 31, 2019
Warrant  
Schedule of share-based compensation, stock options, activity
      Year Ended December 31, 2019     Year Ended December 31, 2018  
   

 

Shares

     Weighted Average Exercise Price    

Aggregate

Intrinsic Value as of

December 31,

2019

    

 

Shares

     Weighted Average Exercise Price    

Aggregate Intrinsic Value as of

December 31,

2018

  
Warrants outstanding at beginning of year     2,000,000     $ 0.18       None       2,060,000     $ 0.18          
Granted     0       NA               0       NA          
Exercised     0       NA               0       NA          
Cancelled/expired     (0 )     NA               60,000     $ 0.18          
Warrants outstanding at end of year     2,000,000     $ 0.18       None       2,000,000     $ 0.18       None  
Warrants exercisable at end of year     2,000,000     $ 0.18               2,000,000     $ 0.18          
Employee Stock Option  
Schedule of share-based compensation, stock options, activity
    Year Ended December 31,2019     Year Ended December 31, 2018  
    Shares     Weighted Average Exercise Price    

Aggregate

Intrinsic Value as of December 31, 2019

     Shares     Weighted Average Exercise Price     Aggregate Intrinsic Value as of December 31, 2018  
Options outstanding at beginning of year     2,222,000     $ 0.13     $ 3,000       2,147,000     $ 0.13        
Granted     80,000     $ 0.07               80,000     $ 0.10        
Exercised     0     NA               0      NA        
Cancelled/expired     (50,000 )   $ 0.20               (5,000 )   $ 0.26        
Options outstanding at end of year     2,252,000     $ 0.14     $ 1,000       2,222,000     $ 0.13     $ 3,000  
Options exercisable at end of year     2,172,000     $ 0.13               2,142,000     $ 0.13          
Schedule of share-based compensation, shares authorized under stock option plans, by exercise price range
 Options Outstanding              Options Exercisable 
  Range of exercise price     Shares     Weighted average exercise price    Weighted average remaining life in years     Shares    Weighted average exercise price 
                            
                            
                            
                            
 $0.07 - $0.10    365,000   $0.09    4.43    285,000   $0.09 
 $0.11 - $0.14    1,485,000   $0.12    5.35    1,485,000   $0.12 
 $0.15 - $0.26    402,000   $0.18    3.47    402,000   $0.18 
 TOTAL    2,252,000   $0.14    4.87    2,172,000   $0.13 
Schedule of share-based payment award, stock options, valuation assumptions
    Year Ended December 31  
    2019     2018  
Volatility     85%       79%  
Expected term (years)   10 years     10 years  
Risk-free interest rate     2.01%       2.90%  
Dividend yield     0%       0%