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Stockholders' Equity (Details 1) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2015	Dec. 31, 2013	Dec. 31, 2012
Stockholders' Equity [Abstract]
Number of Shares, Outstanding	373,082	673,034	135,592
Number of Shares, Granted	299,952	311,100	237,490
Number of Shares, Forfeited		(206,504)
Number of Shares, Outstanding and expected to vest	673,034	777,630	373,082	135,592
Number of Shares, exercisable		301,499
Weighted Average Exercise Price Per Share, Outstanding	$ 4.00	$ 5.55	$ 4.00
Weighted Average Exercise Price Per Share, Granted	7.50	12.63	4.00
Weighted Average Exercise Price Per Share, Forfeited		9.12
Weighted Average Exercise Price Per Share, Outstanding and expected to vest	$ 5.55	7.44	$ 4.00	$ 4.00
Weighted Average Exercise Price Per Share, exercisable		$ 5.03
Weighted Average Remaining Contractual Term, Outstanding	9 years 2 months 12 days	8 years 7 months 6 days	8 years 9 months 18 days	9 years 6 months
Weighted Average Remaining Contractual Term, exercisable		8 years
Aggregate Intrinsic Value, Outstanding	$ 1,305,000	$ 3,000,000
Aggregate Intrinsic Value, Outstanding	$ 3,000,000	2,787,000	$ 1,305,000
Aggregate Intrinsic Value, exercisable		$ 1,557,000

X

- 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=6415400&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

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



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-Section 50



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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



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-Subparagraph (c)(1)(iv)(3)



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- Definition

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

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

+ References

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

+ References

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

+ References

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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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 fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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