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Employee Benefit Plans (Details 14) (SERP, USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
SERP
   
Prepaid pension cost (liability) as of beginning of fiscal year $ (6,614) $ (6,075)
Net periodic pension cost for fiscal year (406) (602)
Benefits paid 172 146
Effect of curtailment    (83)
Prepaid pension cost (liability) as of end of fiscal year $ (6,848) $ (6,614)