Loans and Allowance for Loan Losses (Loans by Credit Quality Indicator) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 987,327	$ 996,340
Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	34,518	24,690
Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	796,774	821,612
Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	105,862	81,329
Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	49,407	63,436
Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	766	5,273
Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	57,613	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	39,978	45,982
Construction | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	6,512	5,185
Construction | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	10,523	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	496,862	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	396,742	406,498
Other Commercial Real Estate | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	70,839	57,912
Other Commercial Real Estate | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	29,281	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	42,436	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	26,670	29,296
Asset-Based | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	15,387	7,096
Asset-Based | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	379	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	113,454	117,790
Other Commercial | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	21,389	11,085
Other Commercial | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	88,154	103,359
Other Commercial | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	2,462	1,802
Other Commercial | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	1,375	1,466
Other Commercial | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	74	78
Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans	37,196	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	35,313	35,824
Home Equity | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	729	585
Home Equity | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	1,154	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	197,629	186,815
Other 1-4 Family | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	59	119
Other 1-4 Family | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	181,556	172,182
Other 1-4 Family | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	9,366	8,205
Other 1-4 Family | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	6,558	6,216
Other 1-4 Family | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	90	93
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	42,137	42,666
Consumer | Risk Rating 10 and 20
Financing Receivable, Recorded Investment [Line Items]
Loans	13,070	13,486
Consumer | Risk Rating 30 - 32
Financing Receivable, Recorded Investment [Line Items]
Loans	28,361	28,471
Consumer | Risk Rating 40
Financing Receivable, Recorded Investment [Line Items]
Loans	567	544
Consumer | Risk Rating 50
Financing Receivable, Recorded Investment [Line Items]
Loans	137	162
Consumer | Risk Rating 60
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 2	$ 3