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7. Outstanding Warrants (Details) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Outstanding Warrants Details    
Dividend yield 0.00% 0.00%
Risk-free interest rate 0.81% 1.10%
Expected volatility 71.80% 80.02%
Expected life (years) 2 years 3 years 7 months 13 days
Market value per share on grant date $ 2.56 $ 4.06
Exercise price per share .01 .85
Fair value per share on grant date $ 2.55 $ 3.58