Loans and Allowance for Loan Losses (Loans by Credit Quality Indicator) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 982,596	$ 996,340
Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	34,324	24,690
Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	794,253	821,612
Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	102,874	81,329
Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	50,376	63,436
Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	769	5,273
Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	67,814	69,325
Construction | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Construction | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	43,604	45,982
Construction | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	12,838	5,185
Construction | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	10,772	13,059
Construction | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	600	5,099
Other Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans	499,370	505,180
Other Commercial Real Estate | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Other Commercial Real Estate | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	403,986	406,498
Other Commercial Real Estate | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	65,839	57,912
Other Commercial Real Estate | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	29,545	40,770
Other Commercial Real Estate | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Asset-Based
Financing Receivable, Recorded Investment [Line Items]
Loans	36,689	37,540
Asset-Based | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Asset-Based | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	24,065	29,296
Asset-Based | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	11,572	7,096
Asset-Based | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	1,052	1,148
Asset-Based | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Other Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	111,084	117,790
Other Commercial | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	20,919	11,085
Other Commercial | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	86,496	103,359
Other Commercial | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	2,298	1,802
Other Commercial | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	1,296	1,466
Other Commercial | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	75	78
Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans	36,183	37,024
Home Equity | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Home Equity | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	34,033	35,824
Home Equity | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	977	585
Home Equity | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	1,173	615
Home Equity | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Other 1-4 Family
Financing Receivable, Recorded Investment [Line Items]
Loans	189,927	186,815
Other 1-4 Family | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	114	119
Other 1-4 Family | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	174,642	172,182
Other 1-4 Family | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	8,745	8,205
Other 1-4 Family | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	6,335	6,216
Other 1-4 Family | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	91	93
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	41,529	42,666
Consumer | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	13,291	13,486
Consumer | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	27,427	28,471
Consumer | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	605	544
Consumer | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	203	162
Consumer | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 3	$ 3