Loans and Related Allowance for Credit Losses (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014 contract	Jun. 30, 2013 contract	Jun. 30, 2014 loan	Jun. 30, 2013 contract
Financing Receivable, Allowance for Credit Losses [Line Items]
Period for loan to be nonaccrual			90 days
Reserves or charge-offs related to troubled debt restructuring			$ 0
Period for average historical loss for each portfolio segments			10 years
Period over which historical loss for portfolio segments has been used			7 years
Business lines of credit, maturity period			5 years
Period for loans to be considered for charge off			120 days
Defaults of troubled debt restructuring			370,000
Real Estate - Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum terms offered to loans			20 years
Maximum loan-to-value ratio			80.00%
Home Equity Lines of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum terms offered to loans			20 years
Maximum loan-to-value ratio			90.00%
Fixed Rate and Adjustable Rate Mortgage Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum terms offered to loans			25 years
Home Equity Installment Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum terms offered to loans			15 years
Maximum loan-to-value ratio			80.00%
Real Estate - Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum loan-to-value ratio			80.00%
Troubled Debt Restructuring, Current Period [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Period for loan to be nonaccrual			90 days
Defaults of troubled debt restructuring	$ 0	$ 0	$ 0	$ 0
Number of troubled debt restructurings	1	4	1	5
Troubled Debt Restructuring, Current Period [Member] | Real Estate - Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of troubled debt restructurings		1		1
Troubled Debt Restructuring, Current Period [Member] | Real Estate - Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of troubled debt restructurings	1	3	1	4