Commitments and Off-balance Sheet Items (Summary of Commitments and Contingencies) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Standby Letters of Credit
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	$ 613	$ 1,515
Variable Rate	5,405	5,262
Commitment to Sell Loans, Mandatory
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	140	0
Variable Rate	0	0
Commitment to Sell Loans, Non-Mandatory
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	17,199	20,672
Variable Rate	0	0
Commitments to Fund Loans:
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	34,303	43,906
Variable Rate	384,978	345,225
Consumer Lines | Commitments to Fund Loans:
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	7,642	8,940
Variable Rate	167,164	145,064
Residential Mortgages | Commitments to Fund Loans:
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	11,117	11,249
Variable Rate	123	930
Commercial Operating Lines | Commitments to Fund Loans:
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	15,544	23,717
Variable Rate	$ 217,691	$ 199,231