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Employee Benefit Plans (Details 10) (SERP, USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
SERP
     
Benefit obligation at beginning of year $ 6,813 $ 8,064 $ 7,433
Service cost 304 303 292
Interest cost 203 280 351
Actuarial (gain) loss (1,856) (1,201) 93
Benefits paid (172) (146)  
Curtailment gain    (487)   
Benefit obligation at end of year 5,292 6,813 8,064
Plan assets at end of year         
Funded status at end of year $ (5,292) $ (6,813) $ (8,064)