Stockholders' Equity (Details 3) (Employee Stock Option [Member], USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Employee Stock Option [Member]
Class of Stock [Line Items]
Non-vested stock options at January 1	248,411	117,188
Granted - Number of Options	141,880	206,390
Vested - Number of Options	(156,240)	(75,167)
Exercised - Number of Options	(7,504)	0
Forfeited/Expired/Exchanged - Number of Options	(24,688)	0
Non-vested stock options at December 31	201,859	248,411
Non-vested options - Weighted Average Grant Date Fair Value	$ 4.15	$ 2.20
Granted - Weighted Average Grant Date Fair Value	$ 9.68	$ 4.91
Vested - Weighted Average Grant Date Fair Value	$ 5.50	$ 3.21
Exercised - Weighted Average Grant Date Fair Value	$ 4.88	$ 0
Forfeited/Expired/Exchanged - Weighted Average Grant Date Fair Value	$ 7.36	$ 0
Non-vested options - Weighted Average Grant Date Fair Value	$ 6.57	$ 4.15

The weighted average fair value at grant date of nonvested stock options exercised during the period.

No definition available.

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- Definition

Number of non vested options exercised during the period.

+ References

No definition available.

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- Definition

Number of non vested options granted during the period.

+ References

No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ 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 (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of non-vested options outstanding.

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- Definition

Number of non-vested options forfeited.

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Weighted average grant-date fair value of non-vested options forfeited.

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No definition available.

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- Definition

Weighted average grant-date fair value of non-vested options outstanding.

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- Definition

Number of options vested.

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No definition available.

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- Definition

Weighted average grant-date fair value of options vested.

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