Investment Securities (Amortized Cost and Fair Value of Available-for-Sale Securities by Contractual Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Security obligations due, amortized cost, One to five years	$ 9,604
Security obligations due, amortized cost, Five to ten years	10,777
Security obligations due, amortized cost, After ten years	28,632
Total security obligations due, amortized cost	49,013
Available for sale, amortized cost	256,790	269,321
Security obligations due, Fair value, One to five years	9,625
Security obligations due, Fair value, Five to ten years	10,891
Security obligations due, Fair value, After ten years	29,241
Total Security obligations due, Fair value	49,757
Investment securities available for sale	260,806us-gaap_AvailableForSaleSecurities	264,348us-gaap_AvailableForSaleSecurities
Mortgage-backed securities, Government sponsored agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, amortized cost	110,452	104,006
Investment securities available for sale	113,290	103,517
Collateralized Mortgage Obligations, Government Sponsored Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, amortized cost	97,325	108,305
Investment securities available for sale	$ 97,759	$ 107,578

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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