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Share-Based Compensation - Schedule of Stock Option Activities (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Shares Outstanding, Beginning balance	850,405	729,434
Shares, Granted	374,542	120,971
Shares, Exercised	(291,402)
Shares, Cancelled	(120,971)
Shares Outstanding, Ending balance	812,574	850,405
Shares Exercisable	396,596
Weighted-Average Exercise Price, Outstanding, Beginning	$ 0.08	$ 0.12
Weighted-Average Exercise Price, Granted	6.39	0.13
Weighted-Average Exercise Price, Exercised	0.0001
Weighted-Average Exercise Price, Cancelled	0.12
Weighted-Average Exercise Price, Outstanding, Ending	3.01	$ 0.08
Weighted-Average Exercise Price, Exercisable	$ 0.57
Weighted-Average Remaining Contractual Terms (Years), Outstanding Beginning	7 years 6 months 29 days
Weighted-Average Remaining Contractual Terms (Years), Outstanding Ending	5 years 7 months 21 days	7 years 6 months 29 days
Weighted-Average Remaining Contractual Terms (Years), Exercisable	6 years 5 months 1 day

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Weighted-Average Remaining Contractual Terms (Years), Outstanding Ending

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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