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Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Statement Of Stockholders Equity [Abstract]      
Cash dividends per share $ 0.00 $ 0.00 $ 0.69
Stock-based compensation plans, issuance of stock, shares 26,610 23,062 44,252
Issuance of stock through dividend reinvestment plan, shares 254 1,562 24,569
Purchase of treasury stock, shares     2,232
Issuance of treasury stock, shares 1   2,719
Compensation expense $ 129 $ 23