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Securities (Tables)
9 Months Ended
Sep. 30, 2015
Investments debt and equity securities [Abstract]  
Available-for-sale Securities [Table Text Block]
1 year1 to 55 to 10After 10FairGross Unrealized Amortized
(Dollars in thousands)or lessyearsyearsyearsValueGainsLossesCost
September 30, 2015
Agency obligations (a)$5,00726,18519,5469,81760,555720408$60,243
Agency RMBS (a)1,76714,470101,066117,3031,539301116,065
State and political subdivisions1,05913,23257,99372,2842,8619669,519
Total available-for-sale$5,00729,01147,248168,876250,1425,120805$245,827

December 31, 2014
Agency obligations (a)$30,94714,86914,43360,249375830$60,704
Agency RMBS (a)14,523120,520135,0431,597616134,062
State and political subdivisions50215,52056,28972,3113,3793468,966
Total available-for-sale$31,44944,912191,242267,6035,3511,480$263,732
(a) Includes securities issued by U.S. government agencies or government sponsored entities.
Available-for-sale Securities, Continuous Unrealized Loss Position [Table Text Block]
Less than 12 Months12 Months or LongerTotal
FairUnrealizedFairUnrealizedFairUnrealized
(Dollars in thousands)ValueLossesValueLossesValueLosses
September 30, 2015:
Agency obligations $24,550408$24,550408
Agency RMBS18,5679419,03120737,598301
State and political subdivisions7,705967,70596
Total $26,27219043,581615$69,853805

December 31, 2014:
Agency obligations $24,126830$24,126830
Agency RMBS9,0782242,74459451,822616
State and political subdivisions4,257344,25734
Total $13,3355666,8701,424$80,2051,480
Available For Sale Securiites Detail Of Other Than Temporary Impairment Losses [Table Text Block]
Quarter ended September 30,Nine Months Ended September 30,
(Dollars in thousands)2015201420152014
Other-than-temporary impairment charges (included in earnings):
Debt securities:
Agency RMBS$$$$333
Total debt securities333
Total other-than-temporary impairment charges
(included in earnings):$$$$333
Other-than-temporary impairment on debt securities:
Recorded as part of gross realized losses:
Securities with intent to sell333
Total other-than-temporary impairment on debt securities$$$$333
Schedule of Realized Gain (Loss) [Table Text Block]
Realized Gains and Losses
The following table presents the gross realized gains and losses on sales of securities.
Quarter ended September 30,Nine Months Ended September 30,
(Dollars in thousands)2015201420152014
Gross realized gains$11$429$14$467
Gross realized losses(664)(664)
Realized gains (losses), net$11$(235)$14$(197)