Benefit Plans (Stock Option Activity) (Details) - $ / shares	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Stock-Based Compensation [Abstract]
Outstanding	163,586	207,303
Weighted Average Exercise Price	$ 15.13	$ 15.92
Exercised	(99,086)	(24,906)
Exercised, Weighted Average Exercise Price	$ 19.34	$ 15.92
Expired		(18,811)
Expired, Weighted Average Exercise Price		$ 22.78
Outstanding	64,500	163,586
Weighted Average Exercise Price	$ 8.67	$ 15.13

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(4)
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- Definition

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

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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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- 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 of the plan that expired.

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

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