Share-Based Payment Transactions (Details 1) |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2017
$ / shares
shares
|
Dec. 31, 2016
$ / shares
shares
|
Dec. 31, 2015
$ / shares
shares
|
|
| Share-based Payment Transactions | |||
| Number of shares, Outstanding at beginning of year | shares | 737,028 | 798,579 | 592,707 |
| Number of shares,Grants | shares | 970,000 | 180,000 | 240,000 |
| Number of shares, Forfeited/expired | shares | (216,605) | (241,551) | (34,128) |
| Number of shares, Outstanding at end of year | shares | 1,490,423 | 737,028 | 798,579 |
| Number of shares, Exercisable at end of year | shares | 451,266 | 402,500 | 557,749 |
| Outstanding at beginning of year | $ / shares | 2.63 | 3.14 | 3.94 |
| Weighted average exercise price, Grants | $ / shares | 0.75 | 1.15 | 1.11 |
| Weighted average exercise price, Forfeited/expired | $ / shares | 4.26 | 3.32 | 2.82 |
| Weighted average exercise price, Outstanding at end of year | $ / shares | 1.35 | 2.63 | 3.14 |
| Weighted average exercise price, Exercisable at end of year | $ / shares | 2.41 | 3.87 | 4.00 |
| X | ||||||||||
- Definition The number of share options outstanding in a share-based payment arrangement. No definition available.
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| X | ||||||||||
- Definition The number of share options exercisable in a share-based payment arrangement. No definition available.
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| X | ||||||||||
- Definition The number of share options forfeited in a share-based payment arrangement. No definition available.
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| X | ||||||||||
- Definition The number of share options granted in a share-based payment arrangement. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of share options exercisable in a share-based payment arrangement. No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of share options forfeited in a share-based payment arrangement. No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of share options granted in a share-based payment arrangement. No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of share options outstanding in a share-based payment arrangement. No definition available.
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