Premises and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Total Cost	$ 58,283	$ 57,155
Accumulated Depreciation and Amortization	(29,795)	(28,001)
Net Premises and Equipment	28,488	29,154
Land and Bank Premises [Member]
Property, Plant and Equipment [Line Items]
Total Cost	35,062	35,114
Equipment, Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total Cost	22,003	20,851
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total Cost	$ 1,218	$ 1,190