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Share-based compensation (Tables) | 9 Months Ended
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Sep. 30, 2019
Share-based compensation |
Schedule of company's stock option plan | A summary of the activity for stock options issued under the Company’s Plans for the indicated periods is presented below:
|  |  |  | Weighted
|  |  |  | Average
|  |  |  | Exercise
Stock Option Totals |  | Shares |  | Price
Outstanding at December 31, 2017 |  | 3,069,440 |  | $ | 4.28
-Exercised |  | (5,000) |  | $ | 3.43
-Granted |  | 3,874,200 |  | $ | 1.19
-Cancelled |  | (2,523,243) |  | $ | 4.92
Outstanding at December 31, 2018 |  | 4,415,397 |  | $ | 1.20
-Exercised |  | (10,000) |  | $ | 0.89
-Granted |  | 524,800 |  | $ | 0.98
-Cancelled |  | (122,820) |  | $ | 1.17
Outstanding at September 30, 2019 |  | 4,807,377 |  | $ | 1.18
Schedule of weighted average contractual life and exercise price | The following is the weighted average contractual life in years and the weighted average exercise price at September 30, 2019 of:
|  |  |  | Weighted |  |  |
|  |  |  | Average |  | Weighted
|  |  |  | Remaining |  | Average
|  | Number of |  | Contractual |  | Exercise
|  | Options |  | Life |  | Price
Options outstanding and vested |  | 4,312,387 |  | 2.04 | years | $ | 1.19

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- Definition Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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