Benefit Plans (Changes in the defined benefit pension plan) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Change in benefit obligation      
Benefit obligation, January 1 $ 12,209 $ 11,334  
Interest cost 450 470 507
Actuarial (gain) loss (1,294) 888  
Benefits paid, including plan expenses (633) (483)  
Benefit obligation, December 31 10,732 12,209 11,334
Change in plan assets      
Fair value of plan assets, January 1 9,650 8,603  
Investment return 1,276 778  
Contributions 215 752  
Benefits paid, including plan expenses (633) (483)  
Fair value of plan assets, December 31 10,508 9,650 8,603
Deficiency in funded status at December31, included on the consolidated balance sheets in accrued interest payable and other liabilities (224) (2,559)  
Change in accrued pension benefit costs      
Accrued benefit cost at January 1 (2,559) (2,731)  
Contributions 215 752  
Net periodic cost for the year (208) (251) (138)
Net change in unrecognized actuarial loss and prior service cost 2,328 (329)  
Accrued benefit cost at December 31 $ (224) $ (2,559) $ (2,731)