Stockholder's Equity - Summary of Stock Option Activity (Details)	3 Months Ended
Mar. 31, 2018 $ / shares shares
Equity [Abstract]
Number of Options Outstanding, Beginning Balance \| shares	369,006
Number of Options Outstanding, Granted \| shares	355,000
Number of Options Outstanding, Exercised \| shares
Number of Options Outstanding, Canceled \| shares
Number of Options Outstanding, Ending Balance \| shares	724,006
Number of Options Exercisable, Ending Balance \| shares	198,448
Weighted- Average Exercise Price Options Outstanding, Beginning Balance \| $ / shares	$ 6.47
Weighted- Average Exercise Price Options Outstanding, Granted \| $ / shares	3.97
Weighted- Average Exercise Price Options Outstanding, Exercised \| $ / shares
Weighted- Average Exercise Price Options Outstanding, Canceled \| $ / shares
Weighted- Average Exercise Price Options Outstanding, Ending Balance \| $ / shares	4.84
Weighted- Average Exercise Price Options Exercisable, Ending Balance \| $ / shares	$ 6.55

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

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.

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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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- Definition

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

+ References

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Number of share options (or share units) exercised during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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