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7. Stock Option Plans and Agreements (Tables)
9 Months Ended
Sep. 30, 2018
Share-based Payment Arrangement [Abstract]  
Schedule of share-based payment award, stock options, valuation assumptions
Risk-free interest rate 1.50% - 1.58%  
Expected dividend yield 0%  
Expected stock price volatility 100%  
Expected life of options

 2.75 to 3.0 years

 
Schedule of share-based compensation, stock options, activity
    Number of Options Outstanding     Weighted Average Exercise Price   Remaining Contractual Term   Aggregate Intrinsic Value  
Outstanding at December 31, 2017     8,031,000     $ .10          
     Expired     (406,000 )   $ .26          
Outstanding at September 30, 2018     7,625,000     $ .09  

3.5 years

  $ 0  
                           
At September 30, 2018 - vested or                          
expected to vest and exercisable     6,687,000     $ .07  

3.9 years

  $ 0