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7. STOCK OPTION PLANS (Details 3)
12 Months Ended
Dec. 31, 2015
$ / shares
shares
0.12-0.14  
Option price range, upper $ 0.14
Option price range, lower $ 0.12
Number of shares Outstanding end of period | shares 45,000
Weighted average remaining contractual life 3 years 3 months 18 days
Weighted average exercise price, ending $ 0.13
Number Exercisable | shares 45,000
Weighted average exercise price $ 0.13
0.16-0.20  
Option price range, upper 0.20
Option price range, lower $ 0.16
Number of shares Outstanding end of period | shares 30,000
Weighted average remaining contractual life 2 years
Weighted average exercise price, ending $ 0.18
Number Exercisable | shares 30,000
Weighted average exercise price $ 0.18
0.25-0.26  
Option price range, upper 0.26
Option price range, lower $ 0.25
Number of shares Outstanding end of period | shares 30,000
Weighted average remaining contractual life 1 year 3 months 18 days
Weighted average exercise price, ending $ 0.26
Number Exercisable | shares 30,000
Weighted average exercise price $ 0.26
0.35-0.36  
Option price range, upper 0.36
Option price range, lower $ 0.35
Number of shares Outstanding end of period | shares 15,000
Weighted average remaining contractual life 7 months 6 days
Weighted average exercise price, ending $ 0.36
Number Exercisable | shares 15,000
Weighted average exercise price $ 0.36
0.18-1.20  
Option price range, upper 1.20
Option price range, lower $ 0.18
Number of shares Outstanding end of period | shares 105,000
Weighted average remaining contractual life 4 years 7 months 6 days
Weighted average exercise price, ending $ 0.87
Number Exercisable | shares 105,000
Weighted average exercise price $ 0.87
0.12-1.20  
Option price range, upper 1.20
Option price range, lower $ 0.12
Number of shares Outstanding end of period | shares 225,000
Weighted average remaining contractual life 3 years 3 months 18 days
Weighted average exercise price, ending $ 0.51
Number Exercisable | shares 225,000
Weighted average exercise price $ 0.51