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Stock Options Valuation Assumptions (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015
Stock Options Valuation Assumptions Details |  |  |  |
Expected term (in years) Minimum | 1.5 | 1.5 |  |
Expected term (in years) Maximum | 10 | 10 | 10 | 10
Expected Volatility, Minimum | 67.30% | 67.30% | 67.30% | 80.50%
Expected Volatility, Maximum | 139.50% | 139.50% | 78.90% | 184.00%
Dividend yield | 0.00% | 0.00% | 0.00% | 0.00%
Risk-free interest rate, Minimum | 0.79% | 0.79% | 1.13% | 2.24%
Risk-free interest rate, Maximum | 2.32% | 2.32% | 2.32% | 2.32%

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- Definition Dividend yield + References No definition available. + Details
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- Definition Expected term (in years) Maximum + References No definition available. + Details
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- Definition Expected term (in years) Minimum + References No definition available. + Details
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- Definition Weighted average remaining recognition period + References No definition available. + Details
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- Definition The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References No definition available. + Details
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- Definition The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References No definition available. + Details
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- Definition The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
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- Definition The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
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