Stock Based Compensation (Details) (USD $)	3 Months Ended
Mar. 31, 2015
Stock Based Compensation [Abstract]
Options outstanding, January 1, 2015, Shares	69,372
Exercised, Shares
Forfeited, Shares	(2,620)
Options outstanding, March 31, 2015, Shares	66,752
Options exercisable, March 31, 2015, Shares	66,752
Options outstanding, January 1, 2015, Weighted Average Exercise Price	$ 11.44
Exercised, Weighted Average Exercise Price
Forfeited, Weighted Average Exercise Price	$ 10.84
Options outstanding, March 31, 2015, Weighted Average Exercise Price	$ 11.46
Options exercisable, March 31, 2015, Weighted Average Exercise Price	$ 11.46
Options outstanding, March 31, 2015, Weighted Average Remaining Contractual Life (in years)	9 months
Options exercisable, March 31, 2015, Weighted Average Remaining Contractual Life (in years)	9 months

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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.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

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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

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.

+ References

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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.

+ References

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

-Publisher FASB

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- Definition

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 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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- Definition

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

+ References

No definition available.

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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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No definition available.

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- Definition

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

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-Publisher SEC

-Name Regulation S-X (SX)

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