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7. STOCK OPTION PLANS (Details) - 2009 Stock Option Plan - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Number of shares Outstanding at beginning of period 1,690,500 2,315,000
Granted 1,155,000 50,000
Exercised (256,500) 0
Expired (52,500) (674,500)
Number of shares Outstanding end of period 2,536,500 1,690,500
Weighted average exercise price    
Weighted average exercise price, beginning $ 0.29 $ 0.35
Granted 0.49 0.12
Exercised 0.36 0.00
Expired 0.16 0.49
Weighted average exercise price, ending $ 0.38 $ 0.29