Loans and Allowance for Loan Losses (Troubled Debt Restructurings That Subsequently Defaulted) (Details) (Troubled Debt Restructurings That Subsequently Defaulted [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013 Contract		Jun. 30, 2012 Contract		Jun. 30, 2013 Contract		Jun. 30, 2012 Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	13		19		30	[1]	25	[1]
Recorded Investment	$ 2,561	[1]	$ 12,347	[1]	$ 17,905	[1]	$ 17,829	[1]
Home Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0		0		0	[1]	0	[1]
Recorded Investment	0		0		0	[1]	0	[1]
Consumer Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	3		1		13	[1]	3	[1]
Recorded Investment	420		1,009		978	[1]	1,479	[1]
Credit Cards [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0		0		0	[1]	0	[1]
Recorded Investment	0		0		0	[1]	0	[1]
Small Business [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1		0		1	[1]	0	[1]
Recorded Investment	20		0		20	[1]	0	[1]
Other Retail Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0		0		1	[1]	0	[1]
Recorded Investment	0		0		195	[1]	0	[1]
Investment Properties [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0		2		2	[1]	3	[1]
Recorded Investment	0		1,519		4,519	[1]	3,552	[1]
1-4 Family Properties [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	6		4		8	[1]	5	[1]
Recorded Investment	1,809		714		10,754	[1]	2,703	[1]
Land Acquisition [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1		4		1	[1]	5	[1]
Recorded Investment	125		4,125		126	[1]	4,652	[1]
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	7		10		11	[1]	13	[1]
Recorded Investment	1,934	[1]	6,358	[1]	15,399	[1]	10,907	[1]
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	2		8		4	[1]	9	[1]
Recorded Investment	187		4,980		1,313	[1]	5,443	[1]
Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	4		1		15	[1]	3	[1]
Recorded Investment	$ 440	[1]	$ 1,009	[1]	$ 1,193	[1]	$ 1,479	[1]

[1] Default is defined as the earlier of the troubled debt restructuring being placed on non-accrual status or reaching 90 days past due with respect to principal and/or interest payments.Troubled Debt Restructurings Entered Into That Subsequently Defaulted(1) During Six Months Ended June 30, 2012(2) Three Months Ended June 30, 2012(2)(in thousands, except contract data)Number ofContracts RecordedInvestment Number ofContracts RecordedInvestmentInvestment properties3 $3,552 2 $1,5191-4 family properties5 2,703 4 714Land acquisition5 4,652 4 4,125Total commercial real estate13 10,907 10 6,358Commercial and industrial9 5,443 8 4,980Home equity lines— — — —Consumer mortgages3 1,479 1 1,009Credit cards— — — —Small business— — — —Other retail loans— — — —Total retail loans3 1,479 1 1,009Total TDRs25 $17,829 19 $12,347 (1) Default is defined as the earlier of the troubled debt restructuring being placed on non-accrual status or reaching 90 days past due with respect to principal and/or interest payments.(2) Amounts related to loans modified or renewed into TDRs within 12 months of the default date that subsequently defaulted during the six and three months ended June 30, 2012 were previously disclosed as 39 contracts with recorded investment totaling $48.9 million and 25 contracts with recorded investment totaling $21.7 million, respectively. These amounts were revised in the table above due to a re-evaluation of the defaulted status of certain loans during these periods.