CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2011	$ 160,548us-gaap_StockholdersEquity	$ 5,445	$ 80,971	$ 89,853	$ (12,968)	$ (2,753)
Net income	23,303us-gaap_NetIncomeLoss			23,303
Cash dividends	(7,361)us-gaap_DividendsCommonStockCash			(7,361)
Stock dividend	(42)us-gaap_DividendsCommonStock	521	44,280	(44,843)
Issuance of common shares pursuant to stock-based compensation plan, net	82		(310)		392
Exercise of stock options and SARs	(574)		(1,254)		680
Stock-based compensation expense	1,399		1,399
Other comprehensive loss	(3,340)					(3,340)
Balance at Dec. 31, 2012	174,015us-gaap_StockholdersEquity	5,966	125,086	60,952	(11,896)	(6,093)
Net income	23,497us-gaap_NetIncomeLoss			23,497
Cash dividends	(8,510)us-gaap_DividendsCommonStockCash			(8,510)
Issuance of common shares pursuant to stock-based compensation plan, net	(247)		(755)		508
Exercise of stock options and SARs	(836)		(1,244)		408
Stock-based compensation expense	1,975		1,975
Other comprehensive loss	533					533
Balance at Dec. 31, 2013	190,427us-gaap_StockholdersEquity	5,966	125,062	75,939	(10,980)	(5,560)
Net income	24,033us-gaap_NetIncomeLoss			24,033
Cash dividends	(9,337)us-gaap_DividendsCommonStockCash			(9,337)
Issuance of common shares pursuant to stock-based compensation plan, net	(632)		(594)		(38)
Exercise of stock options and SARs	(181)		(340)		159
Stock-based compensation expense	2,041		2,041
Purchase of 39,502 shares	(1,848)				(1,848)
Other comprehensive loss	(4,071)					(4,071)
Balance at Dec. 31, 2014	$ 200,432us-gaap_StockholdersEquity	$ 5,966	$ 126,169	$ 90,635	$ (12,707)	$ (9,631)

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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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 and reclassification adjustments of other comprehensive income (loss).

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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 as a result of the exercise of stock options.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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