Loans and Allowance for Loan Losses (Loans by Credit Quality Indicator) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 975,473	$ 996,340
Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	23,548	24,690
Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	811,221	821,612
Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	93,923	81,329
Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	46,018	63,436
Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	763	5,273
Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	58,745	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	41,560	45,982
Construction | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	6,847	5,185
Construction | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	9,738	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	484,114	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	394,904	406,498
Other Commercial Real Estate | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	62,387	57,912
Other Commercial Real Estate | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	26,823	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	36,679	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	25,830	29,296
Asset-Based | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	10,572	7,096
Asset-Based | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	277	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	116,871	117,790
Other Commercial | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	10,329	11,085
Other Commercial | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	101,937	103,359
Other Commercial | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	3,253	1,802
Other Commercial | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	1,280	1,466
Other Commercial | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	72	78
Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans	37,736	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	35,848	35,824
Home Equity | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	733	585
Home Equity | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	1,155	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	200,992	186,815
Other 1-4 Family | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	58	119
Other 1-4 Family | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	184,703	172,182
Other 1-4 Family | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	9,529	8,205
Other 1-4 Family | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	6,613	6,216
Other 1-4 Family | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	89	93
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	40,336	42,666
Consumer | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	13,161	13,486
Consumer | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	26,439	28,471
Consumer | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	602	544
Consumer | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	132	162
Consumer | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 2	$ 3