Annual report pursuant to Section 13 and 15(d)

11. Stockholders' Equity (Details)

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11. Stockholders' Equity (Details) - Warrants [Member] - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Weighted-average expected dividend yield 0.00% 0.00%
Weighted-average expected volatility 104.81% 103.32%
Weighted-average risk-free interest rate 1.03% 0.96%
Weighted-average expected life of option (years) 5 years 5 years
Weighted-average exercise price $ .77 $ .77
Model used Black-Scholes Black-Scholes