Shareholders Equity and Capital Stock (Details 2) - $ / shares |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Expected forfeiture rate | 6.10% | 6.20% | 5.60% | ||
| Expected life (years) | 3 years 10 months 24 days | 3 years 8 months 12 days | 3 years 8 months 12 days | 3 years 8 months 12 days | |
| Expected volatility | 63.20% | 58.60% | 56.80% | ||
| Risk free rate | 0.40% | 1.60% | 1.00% | ||
| Expected dividend rate | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| Black-Scholes value (CAD$) | $ 0.30 | $ 0.35 | $ 0.31 | ||
| Minimum [Member] | |||||
| Expected forfeiture rate | 5.80% | 5.30% | |||
| Expected life (years) | 3 years 8 months 12 days | ||||
| Expected volatility | 53.80% | 56.00% | |||
| Risk free rate | 1.90% | 1.00% | |||
| Black-Scholes value (CAD$) | $ 0.33 | $ 0.32 | |||
| Maximum [Member] | |||||
| Expected forfeiture rate | 6.00% | 6.00% | |||
| Expected life (years) | 3 years 9 months 18 days | ||||
| Expected volatility | 55.00% | 57.50% | |||
| Risk free rate | 2.10% | 1.60% | |||
| Black-Scholes value (CAD$) | $ 0.39 | $ 0.44 | |||
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- References No definition available.
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. No definition available.
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- References No definition available.
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The estimated measure of the 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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