Consolidated Statements of Changes in Shareholders' Equity (USD $) In Thousands	Total	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance at Dec. 31, 2011	$ 131,889us-gaap_StockholdersEquity	$ 44,350	$ 80,038	$ (3,260)	$ 10,761
Net income	17,136us-gaap_NetIncomeLoss		17,136
Other comprehensive income (loss)	3,163				3,163
Restricted stock award grants		(419)		419
Exercise of stock options, including tax benefit	464	(27)		491
Stock based compensation expense	277	277
Reissue of treasury stock	649	42		607
Cash dividends declared ($0.66 per share)	(8,214)us-gaap_DividendsCash		(8,214)
Ending balance at Dec. 31, 2012	145,364us-gaap_StockholdersEquity	44,223	88,960	(1,743)	13,924
Net income	16,679us-gaap_NetIncomeLoss		16,679
Other comprehensive income (loss)	(23,369)				(23,369)
Common stock issued in acquisition	33,561	33,561
Restricted stock award grants		(471)		471
Exercise of stock options, including tax benefit	733	182		551
Stock based compensation expense	390	390
Reissue of treasury stock	126	38		88
Cash dividends declared ($0.66 per share)	(8,573)us-gaap_DividendsCash		(8,573)
Ending balance at Dec. 31, 2013	164,911us-gaap_StockholdersEquity	77,923	97,066	(633)	(9,445)
Net income	23,074us-gaap_NetIncomeLoss		23,074
Other comprehensive income (loss)	10,504				10,504
Restricted stock award grants		(497)		497
Exercise of stock options, including tax benefit	573	7		566
Stock based compensation expense	548	548
Purchase of treasury stock	(1,675)			(1,675)
Reissue of treasury stock	134	41		93
Cash dividends declared ($0.66 per share)	(9,521)us-gaap_DividendsCash		(9,521)
Ending balance at Dec. 31, 2014	$ 188,548us-gaap_StockholdersEquity	$ 78,022	$ 110,619	$ (1,152)	$ 1,059

Stock issued during period value restricted stock award grants.

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This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Value of stock issued pursuant to acquisitions during the period.

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Value of stock issued as a result of the exercise of stock options.

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Equity impact of the value of treasury stock (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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