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Stock-Based Compensation (Tables) - SayMedia, Inc [Member] | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
Schedule of Estimated Weighted Average Assumptions | During the nine months ended September 30, 2018 and 2017 the assumptions used in the Black-Scholes option-pricing model for options granted during the period were as follows:
|  | 2018 |  |  | 2017 |
Volatility |  |  | 48.75 | % |  |  | 75.0 | %
Expected dividends |  |  | 0.0 | % |  |  | 0.0 | %
Expected terms (in years) |  |  | 6.03 |  |  |  | 6.02 |
Risk-free interest rate |  |  | 2.69 | % |  |  | 2.12 | %
| The fair value of the Company’s stock-based awards to employees during the years ended December 31, 2017 and 2016, was estimated using the following weighted-average assumptions:
|  | 2017 |  |  | 2016 |
Volatility |  |  | 75.0 | % |  |  | 102.9 | %
Expected dividends |  |  | None |  |  |  | None |
Expected term (in years) |  |  | 6.02 |  |  |  | 6.02 |
Risk-free interest rate |  |  | 2.12 | % |  |  | 1.53 | %
Exercise price |  | $ | 0.04 |  |  | $ | 0.02 |
Grant date fair value of options granted |  | $ | 0.03 |  |  | $ | 0.01 |
Summary of Stock Option Activity | A summary of stock option activity during the nine months ended September 30, 2018 is as follows:
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life (in Years) |
Stock options outstanding at January 1, 2018 |  |  | 18,490,918 |  |  | $ | 0.27 |  |  |  |  |
Granted |  |  | 854,496 |  |  |  | 0.05 |  |  |  |  |
Exercised |  |  | (9,375 | ) |  |  | 0.02 |  |  |  |  |
Forfeited |  |  | (1,234,026 | ) |  |  | 0.05 |  |  |  |  |
Stock options outstanding at September 30, 2018 |  |  | 18,102,013 |  |  |  | 0.28 |  |  |  | 7.11 |
Stock options exercisable at September 30, 2018 |  |  | 15,619,036 |  |  |  | 0.32 |  |  |  | 6.83 |
| The following table summarizes information about stock option activity for the year ended December 31, 2017:
|  | Outstanding Options |  |  | Weighted-Average Exercise Price |  |  | Weighted-Average Remaining Contractual Term in Years |
Balance, January 1, 2017 |  |  | 16,896,914 |  |  | $ | 0.30 |  |  |  | 8.44 |
Granted |  |  | 3,247,760 |  |  | $ | 0.04 |  |  |  |  |
Exercised |  |  | (30,000 | ) |  | $ | 0.02 |  |  |  |  |
Forfeited |  |  | (1,622,800 | ) |  | $ | 0.11 |  |  |  |  |
Expired |  |  | (956 | ) |  | $ | 23.30 |  |  |  |  |
Balance, December 31, 2017 |  |  | 18,490,918 |  |  | $ | 0.27 |  |  |  | 7.86 |
Exercisable, December 31, 2017 |  |  | 14,180,851 |  |  | $ | 0.34 |  |  |  | 7.49 |

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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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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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