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Derivative Instruments (Table)
3 Months Ended
Mar. 31, 2015
Derivative instruments and hedging activities disclosure abstract  
Schedule of Derivative Instruments [Table Text Block]
OtherOther
AssetsLiabilities
EstimatedEstimated
(Dollars in thousands)NotionalFair ValueFair Value
March 31, 2015:
Pay fixed / receive variable$ 4,579 613
Pay variable / receive fixed 4,579 613
Total interest rate swap agreements$ 9,158 613 613
December 31, 2014:
Pay fixed / receive variable$ 4,667 634
Pay variable / receive fixed 4,667 634
Total interest rate swap agreements$ 9,334 634 634