Investments (Amortized Cost and Fair Values Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Investments [Line Items]
Amortized Cost: Due in one year or less	$ 0
Amortized Cost: Due after one year through five years	53,470
Amortized Cost: Due after five years through ten years	20,615
Amortized Cost: Due after ten years	59,936
Amortized Cost: Sub Total	134,021
Fair Value: Due in one year or less	0
Fair Value: Due after one year through five years	53,689
Fair Value: Due after five years through ten years	21,236
Fair Value: Due after ten years	54,293
Available For Sale Debt Maturities Fair Value Sub Total	129,218
Available-for-sale Securities, Amortized Cost Basis	210,059	$ 231,745
Available-for-sale Securities	205,226	221,117
Amortized Cost: Due after five years through ten years, Held to maturity	15,538
Amortized Cost: Due after ten years, Held to maturity	11,698
Amortized Cost: Total, Held to maturity	27,236
Fair Value: Due after five years through ten years, Held to maturity	15,799
Fair Value: Due after ten years, Held to maturity	11,817
Fair Value: Total, Held to maturity	27,616
Held-to-maturity securities	107,816	109,449
Held-to-maturity securities, fair value	108,417	110,771
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	20,073	45,175
Available-for-sale Securities	19,963	45,273
Held-to-maturity securities	55,616	58,400
Held-to-maturity securities, fair value	55,690	59,008
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	42,795	26,007
Available-for-sale Securities	42,866	25,957
Held-to-maturity securities	18,215	16,425
Held-to-maturity securities, fair value	18,502	16,737
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	13,170	8,611
Available-for-sale Securities	13,179	8,707
Held-to-maturity securities	6,749	7,379
Held-to-maturity securities, fair value	$ 6,609	$ 7,384