| h. | The following is information about exercise price and remaining contractual life of outstanding options, warrants and RSUs at year-end: |
| December 31, 2017 | December 31, 2016 | December 31, 2015 | ||||||||||||||||||||||||||||||||
| Number of options outstanding at end of year | Exercise price |
Weighted average of remaining contractual life |
Number of options outstanding at end of year |
Exercise Price |
Weighted average of remaining contractual life | Number of options outstanding at end of year | Exercise price | Weighted average of remaining contractual life | ||||||||||||||||||||||||||
| 758,928 | $ | 0.002 | 8.29 | 620,970 | $ | 0.002 | 10.73 | 406,841 | $ | 0.002 | 17.39 | |||||||||||||||||||||||
| 98,657 | $ | 1.21 | 6.78 | 117,990 | $ | 1.21 | 7.65 | 171,990 | $ | 1.21 | 8.84 | |||||||||||||||||||||||
| 513,969 | $ | 2.47 | 10.45 | 713,282 | $ | 2.47 | 1.12 | 721,632 | $ | 2.47 | 2.30 | |||||||||||||||||||||||
| 584,871 | $ | 3.30 - $3.48 | 14.96 | 588,023 | $ | 3.30 - $3.48 | 15.96 | 511,246 | $ | 3.32 | 17.75 | |||||||||||||||||||||||
| 60,000 | $ | 6.03 | 17.13 | 60,000 | $ | 6.03 | 18.13 | 60,000 | $ | 6.03 | 19.13 | |||||||||||||||||||||||
| 409,670 | $ | 7.52 | 17.88 | 416,270 | $ | 7.52 | 18.88 | 432,470 | $ | 7.52 | 19.89 | |||||||||||||||||||||||
| 1,610,000 | $ | 5.08 - $5.99 | 19.38 | 725,000 | $ | 5.08 | 19.87 | |||||||||||||||||||||||||||
| 4,036,095 | 3,241,535 | 2,304,179 | ||||||||||||||||||||||||||||||||