Business Combinations, Goodwill and Intangible Assets (Schedule of Acquired Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Gross Amount	$ 14,460	$ 14,460
Accumulated Amortization	12,386	11,132
Core Banking | Core Deposit Intangible
Business Acquisition [Line Items]
Gross Amount	9,004	9,004
Accumulated Amortization	7,015	5,815
Core Banking | Unidentified Branch Acquisition Intangible
Business Acquisition [Line Items]
Gross Amount	257	257
Accumulated Amortization	257	257
Insurance | Customer List
Business Acquisition [Line Items]
Gross Amount	5,199	5,199
Accumulated Amortization	$ 5,114	$ 5,060