Short-Term Borrowings and Long-Term Debt (Narrative) (Details) (USD $)	12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012 Fixed Rate Convertible Advance Matures in 2017 [Member]	Dec. 31, 2011 Fixed Rate Convertible Advance Matures in 2017 [Member]	Dec. 31, 2012 First Fixed Rate Convertible Advance Matures in 2017 [Member]	Dec. 31, 2012 Second Fixed Rate Convertible Advance Matures in 2017 [Member]	Dec. 31, 2012 First Fixed Rate Convertible Advance Matures in 2022 [Member]	Dec. 31, 2011 First Fixed Rate Convertible Advance Matures in 2022 [Member]	Dec. 31, 2013 Third Fixed Rate Convertible Advance Matures in 2017 [Member]	Dec. 31, 2013 First Fixed Rate Convertible Advance Matures in 2015 [Member]	Dec. 31, 2013 Federal Reserve Bank Of Richmond [Member]	Dec. 31, 2013 Other Commercial Banks [Member]	Dec. 31, 2013 Fixed Rate Convertible Advances [Member]	Dec. 31, 2012 Fixed Rate Convertible Advances [Member]	Dec. 31, 2013 Federal Home Loan Bank Borrowings [Member]	Dec. 31, 2013 Maximum [Member] Fixed Rate Convertible Advances [Member]	Dec. 31, 2013 Minimum [Member] Fixed Rate Convertible Advances [Member]	Dec. 31, 2013 Advances and Security Agreement [Member]
Debt Instrument [Line Items]
Convertible debt, noncurrent														$ 10,000,000
Variable convertible debt maturity period																5 years	6 months
Debt instrument maturity year			2017				2022		2017	2015			2020
Interest rate			2.20%	4.30%			2.80%	4.00%	0.87%	0.41%
Debt conversion, original debt, amount			10,000,000		5,000,000	5,000,000	10,000,000		10,000,000	5,000,000
Debt conversion, converted instrument, rate													4.00%
Percentage of the long term debt exercised or expired	100.00%	83.00%
Long term debt exercised or expired	70,500,000	50,500,000
Line of credit facility, maximum borrowing capacity											13,800,000	12,000,000			192,800,000			306,600,000
Percentage of assets limited to maximum borrowing capacity																		30.00%
Security owned and pledged as collateral, fair value															349,900,000
FHLB lendable collateral															263,400,000
FHLB lendable pledged collateral															166,200,000
Line of credit facility, current borrowing capacity															95,700,000
Line of credit facility, fair value of amount outstanding	0	1,000,000									0	0			70,500,000
FHLB lendable unpledged collateral															97,100,000
Due in 2014	750,000
Due in 2018	$ 10,000,000