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Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2011	$ 8,675	$ 133,945	$ (1,321)	$ 141,299us-gaap_StockholdersEquity
Net income		17,747		17,747us-gaap_NetIncomeLoss
Other comprehensive income (loss), net of tax			(1,417)	(1,417)
Cash dividend		(7,639)		(7,639)us-gaap_DividendsCommonStock
Exercise of stock options	10	109		119
Balance at Dec. 31, 2012	8,685	144,162	(2,738)	150,109us-gaap_StockholdersEquity
Net income		17,790		17,790us-gaap_NetIncomeLoss
Other comprehensive income (loss), net of tax			(14,226)	(14,226)
Cash dividend		(7,781)		(7,781)us-gaap_DividendsCommonStock
Balance at Dec. 31, 2013	8,685	154,171	(16,964)	145,892us-gaap_StockholdersEquity
Net income		16,914		16,914us-gaap_NetIncomeLoss
Other comprehensive income (loss), net of tax			11,292	11,292
Cash dividend		(7,853)		(7,853)us-gaap_DividendsCommonStock
Exercise of stock options	3	55		58
Balance at Dec. 31, 2014	$ 8,688	$ 163,287	$ (5,672)	$ 166,303us-gaap_StockholdersEquity

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

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- Definition

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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