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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Consolidated Balance Sheets [Abstract]
Capital stock, par value	$ 2	$ 2
Capital stock, shares authorized	20,000,000	10,000,000
Capital stock, shares issued	6,788,407	6,788,407
Prior service cost and unamortized net actuarial losses on employee benefit plans, tax	$ (249)	$ (251)
Net unrealized appreciation on securities available for sale, tax	2,828	3,997
Portion of OTTI attributable to non-credit losses, tax	249	257
Net unrealized depreciation on derivative instruments, tax	$ 873	$ 389
Treasury stock, shares	778,196	842,082

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Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax

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Face amount or stated value per share of common stock.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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