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8. Outstanding Warrants (Tables) | 12 Months Ended
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Dec. 31, 2017
Outstanding Warrants Tables |
Weighted average assumptions |
Description |  | For the year ended December 31 |
|  | 2017 |  |  | 2016 |
Dividend-yield |  |  | 0 | % |  |  | 0 | %
Risk-free interest rate |  |  | 1.32 | % |  |  | 0.81 | %
Expected volatility |  |  | 68.5 | % |  |  | 71.8 | %
Expected life (years) |  |  | 2 |  |  |  | 2 |
Market value per share on grant date |  | $ | 1.43 |  |  | $ | 2.56 |
Exercise price per share |  | $ | 0.01 |  |  | $ | 0.01 |
Fair value per share on grant date |  | $ | 1.42 |  |  | $ | 2.55 |
Schedule of warrant activity |
|  | Warrants Outstanding & Exercisable |  |  | Weighted - Average Exercise Price |  |  | Average Remaining Term in Years |
Outstanding December 31, 2015 |  |  | 368 |  |  | $ | 3.36 |  |  |  | 4.61 |
Granted |  |  | 227 |  |  |  | 0.01 |  |  |  |  |
Exercised |  |  | (233 | ) |  |  | 0.01 |  |  |  |  |
Expired |  |  | (18 | ) |  |  | 0.01 |  |  |  |  |
Outstanding December 31, 2016 |  |  | 344 |  |  | $ | 3.33 |  |  |  | 3.88 |
Granted |  |  | 227 |  |  |  | 0.01 |  |  |  |  |
Exercised |  |  | (241 | ) |  |  | 0.01 |  |  |  |  |
Expired |  |  | - |  |  |  | 0.01 |  |  |  |  |
Outstanding December 31, 2017 |  |  | 330 |  |  | $ | 3.47 |  |  |  | 3.02 |

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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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