Loans and Allowance for Loan Losses (Loans Past Due) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 4,182	$ 6,656
60-89 Days Past Due	1,300	1,528
Greater Than 90 Days	4,938	15,546
Total Past Due	10,420	23,730
Current	972,176	972,610
Total Loans Receivable	982,596	996,340	1,044,595
Total Loans Greater than 90 Days and Accruing	1,537	602
Construction and Land Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	556	603
60-89 Days Past Due	64	0
Greater Than 90 Days	1,078	4,172
Total Past Due	1,698	4,775
Current	66,116	64,550
Total Loans Receivable	67,814	69,325
Total Loans Greater than 90 Days and Accruing	0	72
Other Commercial Real Estate Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,155	2,194
60-89 Days Past Due	499	679
Greater Than 90 Days	2,832	9,792
Total Past Due	4,486	12,665
Current	494,884	492,515
Total Loans Receivable	499,370	505,180
Total Loans Greater than 90 Days and Accruing	1,368	279
Asset-based Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Greater Than 90 Days	0	0
Total Past Due	0	0
Current	36,689	37,540
Total Loans Receivable	36,689	37,540
Total Loans Greater than 90 Days and Accruing	0	0
Other Commercial Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	433	546
60-89 Days Past Due	53	442
Greater Than 90 Days	289	419
Total Past Due	775	1,407
Current	110,309	116,383
Total Loans Receivable	111,084	117,790
Total Loans Greater than 90 Days and Accruing	80	50
Home Equity Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	209	121
60-89 Days Past Due	80	37
Greater Than 90 Days	17	141
Total Past Due	306	299
Current	35,877	36,725
Total Loans Receivable	36,183	37,024
Total Loans Greater than 90 Days and Accruing	0	0
Other 1-4 Family Residential Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,641	2,978
60-89 Days Past Due	567	303
Greater Than 90 Days	708	981
Total Past Due	2,916	4,262
Current	187,011	182,553
Total Loans Receivable	189,927	186,815
Total Loans Greater than 90 Days and Accruing	81	174
Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	188	214
60-89 Days Past Due	37	67
Greater Than 90 Days	14	41
Total Past Due	239	322
Current	41,290	42,344
Total Loans Receivable	41,529	42,666
Total Loans Greater than 90 Days and Accruing	$ 8	$ 27