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Shareholders' Equity (Details)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Treasury stock, beginning balance	332,242
Shares issued, beginning balance	14,161,597	14,161,597
Shares issued for the SDN acquisition	235,912
Restricted stock awards issued
Restricted stock awards forfeited
Stock options exercised
Treasury stock purchases
Directors' retainer
Treasury stock, ending balance	303,244
Shares issued, ending balance	14,397,509	14,161,597
Common Stock [Member]
Shares outstanding, beginning balance	13,829,355	13,787,709
Shares issued for the SDN acquisition	235,912
Restricted stock awards issued	43,242	43,035
Restricted stock awards forfeited	(13,609)	(18,977)
Stock options exercised	8,467	3,800
Treasury stock purchases	(9,102)	(11,349)
Directors' retainer		5,672
Shares outstanding, ending balance	14,094,265	13,809,890
Treasury Stock [Member]
Treasury stock, beginning balance	332,242	373,888
Restricted stock awards issued	(43,242)	(43,035)
Restricted stock awards forfeited	13,609	18,977
Stock options exercised	(8,467)	(3,800)
Treasury stock purchases	9,102	11,349
Directors' retainer		(5,672)
Treasury stock, ending balance	303,244	351,707

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Directors retainer, shares issued.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Number of shares related to Restricted Stock Award forfeited during the period.

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

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