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Stock-Based Compensation (Tables) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Offsetting Assets [Line Items] |  |
Schedule of stock option plan activity |  |
|  |  |  |  |  |  | Weighted- |  |  |  |
|  |  |  |  | Weighted |  |  | Average |  |  |  |
|  |  |  |  | Average |  |  | Remaining |  |  | Aggregate |
|  | Number of |  |  | Exercise |  |  | Contractual |  |  | Intrinsic |
|  | Options |  |  | Price |  |  | Term (years) |  |  | Value(1) |
Outstanding at December 31, 2016 |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Granted |  |  | 365,716 |  |  | $ | 0.03 |  |  |  | — |  |  |  | — |
Exercised |  |  | — |  |  | $ | — |  |  |  | — |  |  |  | — |
Forfeited/Cancelled |  |  | — |  |  | $ | — |  |  |  | — |  |  |  | — |
Outstanding at December 31, 2017 |  |  | 365,716 |  |  | $ | 0.03 |  |  |  | 9.3 |  |  | $ | 908,920 |
Vested and exercisable at December 31, 2017 |  |  | 365,716 |  |  | $ | 0.03 |  |  |  | 9.3 |  |  | $ | 908,920 |
Vested and expected to vest at December 31, 2017 |  |  | 365,716 |  |  | $ | 0.03 |  |  |  | 9.3 |  |  | $ | 908,920 |
| (1) | The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying options and the fair value of our common stock as of December 31, 2017 of $2.52 per share, respectively.
Schedule of stock-based compensation expense |
|  | For the Three Months Ended |  |  | For the Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
General and administrative |  | $ | 115,000 |  |  | $ | 4,628 |  |  | $ | 367,000 |  |  | $ | 4,628 |
Research and development |  |  | 4,510 |  |  |  | 7,221 |  |  |  | 6,947 |  |  |  | 7,221 |
Total stock-based services expense |  | $ | 119,510 |  |  | $ | 11,849 |  |  | $ | 373,947 |  |  | $ | 11,849 |
|  | 2017 |
General and administrative |  | $ | 2,065 |
Research and development |  |  | 74,729 |
Total stock-based compensation |  | $ | 76,794 |
Schedule of weighted-average assumptions used Black-Scholes option-pricing model |
|  | For the Three Months Ended |  |  | For the Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Expected stock price volatility |  |  | — |  |  |  | 47.8 | % |  |  | — |  |  |  | 47.8 | %
Expected life of options (years) |  |  | — |  |  |  | 5.0 |  |  |  | — |  |  |  | 5.0 |
Expected dividend yield |  |  | — |  |  |  | 0.0 | % |  |  | — |  |  |  | 0.0 | %
Risk free interest rate |  |  | — |  |  |  | 1.9 | % |  |  | — |  |  |  | 1.9 | %
|  | 2017 |
Expected stock price volatility |  |  | 47.8 | %
Expected life of options (years) |  |  | 5.0 |
Expected dividend yield |  |  | 0 | %
Risk free interest rate |  |  | 1.9 | %
Stock option [Member] |  |
Offsetting Assets [Line Items] |  |
Schedule of weighted-average assumptions used Black-Scholes option-pricing model |
|  | As of June 30, 2018 |
Expected stock price volatility |  |  | 50.0 | %
Expected life of options (years) |  |  | 5 |
Expected dividend yield |  |  | 0 | %
Risk free interest rate |  |  | 2.73 | %

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&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=109197908&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=109197908&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=109197908&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=109197908&loc=d3e5070-113901 + Details
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