Commitments and Off-balance Sheet Items (Summary of Commitments and Contingencies) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Commitment to Sell Loans, Mandatory
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	$ 0	$ 140
Variable Rate	0	0
Commitment to Sell Loans, Non-Mandatory
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	25,925	17,199
Variable Rate	0	0
Standby Letters of Credit
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	1,075	613
Variable Rate	5,944	5,405
Commitments to Fund Loans:
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	37,458	34,303
Variable Rate	394,138	384,978
Consumer Lines | Commitments to Fund Loans:
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	8,590	7,642
Variable Rate	178,828	167,164
Residential Mortgages | Commitments to Fund Loans:
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	14,588	11,117
Variable Rate	66	123
Commercial Operating Lines | Commitments to Fund Loans:
Commitments and Contingent Liabilities [Line Items]
Fixed Rate	14,280	15,544
Variable Rate	$ 215,244	$ 217,691