Loans (Details 3) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	$ 441,588	$ 478,576
Commercial real estate included in commercial loans held for sale	14,446	14,178
Gross Loans	723,986	773,558
Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	54,940
Commercial real estate included in commercial loans held for sale	2,691
Gross Loans	57,631
Percentage of gross loans and commercial loans held for sale	7.80%
Percentage of regulatory capital	53.00%
Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	248,640
Commercial real estate included in commercial loans held for sale	7,285
Gross Loans	255,925
Percentage of gross loans and commercial loans held for sale	34.70%
Percentage of regulatory capital	235.40%
Commercial Real Estate Owner Occupied and Residential Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	138,008
Commercial real estate included in commercial loans held for sale	200
Gross Loans	138,208
Percentage of gross loans and commercial loans held for sale	18.70%
Percentage of regulatory capital	127.10%
Land - unimproved (commercial or residential) [Member] | Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	22,377
Commercial real estate included in commercial loans held for sale	2,691
Gross Loans	25,068
Percentage of gross loans and commercial loans held for sale	3.40%
Percentage of regulatory capital	23.00%
Land development - commercial [Member] | Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	10,734
Gross Loans	10,734
Percentage of gross loans and commercial loans held for sale	1.50%
Percentage of regulatory capital	9.90%
Land development - residential [Member] | Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	14,851
Gross Loans	14,851
Percentage of gross loans and commercial loans held for sale	2.00%
Percentage of regulatory capital	13.70%
Retail [Member] | Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	3,972
Gross Loans	3,972
Percentage of gross loans and commercial loans held for sale	0.50%
Percentage of regulatory capital	3.60%
Retail [Member] | Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	20,202
Commercial real estate included in commercial loans held for sale	127
Gross Loans	20,329
Percentage of gross loans and commercial loans held for sale	2.80%
Percentage of regulatory capital	18.70%
Office [Member] | Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	230
Gross Loans	230
Percentage of regulatory capital	0.20%
Office [Member] | Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	20,128
Commercial real estate included in commercial loans held for sale	197
Gross Loans	20,325
Percentage of gross loans and commercial loans held for sale	2.80%
Percentage of regulatory capital	18.70%
Multifamily [Member] | Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans
Commercial real estate included in commercial loans held for sale
Gross Loans
Percentage of gross loans and commercial loans held for sale
Percentage of regulatory capital
Multifamily [Member] | Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	12,694
Gross Loans	12,694
Percentage of gross loans and commercial loans held for sale	1.70%
Percentage of regulatory capital	11.70%
Industrial and Warehouse [Member] | Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	842
Gross Loans	842
Percentage of gross loans and commercial loans held for sale	0.10%
Percentage of regulatory capital	0.80%
Industrial and Warehouse [Member] | Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	9,111
Commercial real estate included in commercial loans held for sale	560
Gross Loans	9,671
Percentage of gross loans and commercial loans held for sale	1.30%
Percentage of regulatory capital	8.90%
Health Care [Member] | Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	16,124
Gross Loans	16,124
Percentage of gross loans and commercial loans held for sale	2.20%
Percentage of regulatory capital	14.80%
Miscellaneous Commercial [Member] | Development Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	1,934
Gross Loans	1,934
Percentage of gross loans and commercial loans held for sale	0.30%
Percentage of regulatory capital	1.80%
Miscellaneous Commercial [Member] | Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	102,966
Commercial real estate included in commercial loans held for sale	1,576
Gross Loans	104,542
Percentage of gross loans and commercial loans held for sale	14.20%
Percentage of regulatory capital	96.10%
Hotel / motel [Member] | Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	67,116
Commercial real estate included in commercial loans held for sale	4,825
Gross Loans	71,941
Percentage of gross loans and commercial loans held for sale	9.70%
Percentage of regulatory capital	66.20%
Commercial - owner occupied [Member] | Commercial Real Estate Owner Occupied and Residential Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	126,248
Commercial real estate included in commercial loans held for sale	200
Gross Loans	126,448
Percentage of gross loans and commercial loans held for sale	17.10%
Percentage of regulatory capital	116.30%
Residential Construction - speculative [Member] | Existing and Other Commercial Real Estate Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	299
Gross Loans	299
Percentage of regulatory capital	0.30%
Commercial Construction - owner occupied [Member] | Commercial Real Estate Owner Occupied and Residential Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	6,468
Gross Loans	6,468
Percentage of gross loans and commercial loans held for sale	0.90%
Percentage of regulatory capital	5.90%
Residential Construction - contract [Member] | Commercial Real Estate Owner Occupied and Residential Loans [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	5,292
Gross Loans	5,292
Percentage of gross loans and commercial loans held for sale	0.70%
Percentage of regulatory capital	4.90%
Total Commercial real estate [Member]
Summary of loans secured by commercial real estate by category
Commercial real estate included in gross loans	441,588
Commercial real estate included in commercial loans held for sale	10,176	(14,178)
Gross Loans	$ 451,764	$ 492,754
Percentage of gross loans and commercial loans held for sale	61.20%
Percentage of regulatory capital	415.50%