Loans and the Allowance for Loan Losses, Impaired Loans (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	$ 14,696	$ 9,782
Without valuation Allowance	9,858	5,763
With Valuation Allowance	4,526	3,830
Associated Allowance	964	1,028
Average Recorded Investment	16,161	13,789
Interest Income Recognized	542	1,057
Residential, 1-4 family [Member]
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	686	486
Without valuation Allowance	670	391
With Valuation Allowance	0	91
Associated Allowance	0	6
Average Recorded Investment	705	3,753
Interest Income Recognized	30	554
Commercial [Member]
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	9,968	8,263
Without valuation Allowance	5,196	4,734
With Valuation Allowance	4,509	3,371
Associated Allowance	947	968
Average Recorded Investment	10,864	8,911
Interest Income Recognized	355	456
Real Estate Construction [Member]
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	3,166	0
Without valuation Allowance	3,163	0
With Valuation Allowance	0	0
Associated Allowance	0	0
Average Recorded Investment	3,539	0
Interest Income Recognized	109	0
Real Estate - Second Mortgages [Member]
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	360	520
Without valuation Allowance	350	250
With Valuation Allowance	0	258
Associated Allowance	0	31
Average Recorded Investment	551	603
Interest Income Recognized	26	24
Equity Line of Credit [Member]
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	371	371
Without valuation Allowance	368	369
With Valuation Allowance	0	0
Associated Allowance	0	0
Average Recorded Investment	367	392
Interest Income Recognized	17	21
Commercial Loan [Member]
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	120	142
Without valuation Allowance	103	19
With Valuation Allowance	0	110
Associated Allowance	0	23
Average Recorded Investment	108	130
Interest Income Recognized	4	2
Consumer Loan [Member]
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	25
Without valuation Allowance	8
With Valuation Allowance	17
Associated Allowance	17
Average Recorded Investment	27
Interest Income Recognized	1
Total Mortgage Loans on real estate [Member]
Impaired Loans by Class [Line Items]
Unpaid Principal Balance	14,551	9,640
Without valuation Allowance	9,747	5,744
With Valuation Allowance	4,509	3,720
Associated Allowance	947	1,005
Average Recorded Investment	16,026	13,659
Interest Income Recognized	$ 537	$ 1,055