3. Fair Value Measurements (Assets And Liabilities Recorded At Fair Value On A Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Residential mortgage loans held for sale, fair value	$ 1,080	$ 226
Impaired loans, fair value	76,680	88,135
OREO	47,258	56,172	60,069
Commercial Loan [Member]
Impaired loans, fair value	7,600	10,856
OREO	0	0
Commercial Real Estate Portfolio Segment [Member]
Impaired loans, fair value	20,639	25,435
OREO	10,310	11,835
Construction And Development Financial Receivable [Member]
Impaired loans, fair value	25,521	27,352
OREO	33,083	40,671
Residential Real Estate Financial Receivable [Member]
Impaired loans, fair value	22,871	24,442
OREO	3,865	3,666
Consumer Portfolio Segment [Member]
Impaired loans, fair value	49	50
OREO	0	0
Fair Value Inputs Level1 [Member]
Residential mortgage loans held for sale, fair value	0	0
Impaired loans, fair value	0	0
OREO	0	0
Fair Value Inputs Level1 [Member] | Commercial Loan [Member]
Impaired loans, fair value	0	0
OREO	0	0
Fair Value Inputs Level1 [Member] | Commercial Real Estate Portfolio Segment [Member]
Impaired loans, fair value	0	0
OREO	0	0
Fair Value Inputs Level1 [Member] | Construction And Development Financial Receivable [Member]
Impaired loans, fair value	0	0
OREO	0	0
Fair Value Inputs Level1 [Member] | Residential Real Estate Financial Receivable [Member]
Impaired loans, fair value	0	0
OREO	0	0
Fair Value Inputs Level1 [Member] | Consumer Portfolio Segment [Member]
Impaired loans, fair value	0	0
OREO	0	0
Fair Value Inputs Level2 [Member]
Residential mortgage loans held for sale, fair value	1,080	226
Impaired loans, fair value	54,224	67,547
OREO	47,176	50,691
Fair Value Inputs Level2 [Member] | Commercial Loan [Member]
Impaired loans, fair value	3,301	5,013
OREO	0	0
Fair Value Inputs Level2 [Member] | Commercial Real Estate Portfolio Segment [Member]
Impaired loans, fair value	8,897	16,331
OREO	10,228	11,047
Fair Value Inputs Level2 [Member] | Construction And Development Financial Receivable [Member]
Impaired loans, fair value	23,210	24,578
OREO	33,083	35,978
Fair Value Inputs Level2 [Member] | Residential Real Estate Financial Receivable [Member]
Impaired loans, fair value	18,816	21,625
OREO	3,865	3,666
Fair Value Inputs Level2 [Member] | Consumer Portfolio Segment [Member]
Impaired loans, fair value	0	0
OREO	0	0
Fair Value Inputs Level3 [Member]
Residential mortgage loans held for sale, fair value	0	0
Impaired loans, fair value	22,456	20,588
OREO	82	5,481
Fair Value Inputs Level3 [Member] | Commercial Loan [Member]
Impaired loans, fair value	4,299	5,843
OREO	0	0
Fair Value Inputs Level3 [Member] | Commercial Real Estate Portfolio Segment [Member]
Impaired loans, fair value	11,742	9,104
OREO	82	788
Fair Value Inputs Level3 [Member] | Construction And Development Financial Receivable [Member]
Impaired loans, fair value	2,311	2,774
OREO	0	4,693
Fair Value Inputs Level3 [Member] | Residential Real Estate Financial Receivable [Member]
Impaired loans, fair value	4,055	2,817
OREO	0	0
Fair Value Inputs Level3 [Member] | Consumer Portfolio Segment [Member]
Impaired loans, fair value	49	50
OREO	$ 0	$ 0