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Employee Benefit Plans (Details 15) (SERP, USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
SERP
     
Service cost - benefits earned during the period $ 304 $ 303 $ 292
Interest cost on projected benefit obligation 203 280 351
Net amortization and deferral (101) 19 30
Net periodic pension cost $ 406 $ 602