Shareholders' Equity and Capital Stock - options activity (Details) |
3 Months Ended |
|---|---|
|
Mar. 31, 2018
$ / shares
shares
| |
| Options Rollforward | |
| Outstanding, Beginning Balance | shares | 9,459,401 |
| Granted, Options | shares | 200,000 |
| Exercised, Options | shares | (67,719) |
| Forfeited, Options | shares | (119,735) |
| Outstanding Ending Balance, Options | shares | 9,471,947 |
| Outstanding, Beginning Balance, Weighted-average exercise price | $ 0.70 |
| Granted, Weighted-average exercise price | 0.60 |
| Exercised, Weighted-average exercise price | 0.61 |
| Forfeited, Weighted-average exercise price | 0.74 |
| Outstanding Ending Balance, Weighted-average exercise price | 0.68 |
| Grant date intrinsic value | $ 0 |
| X | ||||||||||
- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|