Loans and the Allowance for Loan Losses, Impaired Loans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 21,540	$ 9,782
Without Valuation Allowance	8,372	5,763
With Valuation Allowance	9,196	3,830
Associated Allowance	444	1,028
Average Recorded Investment	16,888	13,789
Interest Income Recognized	366	1,057
Residential 1-4 Family [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	4,100	486
Without Valuation Allowance	681	391
With Valuation Allowance	3,235	91
Associated Allowance	226	6
Average Recorded Investment	2,354	3,753
Interest Income Recognized	136	554
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	12,459	8,263
Without Valuation Allowance	3,741	4,734
With Valuation Allowance	5,817	3,371
Associated Allowance	180	968
Average Recorded Investment	10,151	8,911
Interest Income Recognized	242	456
Construction [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	3,782	0
Without Valuation Allowance	3,064	0
With Valuation Allowance	0	0
Associated Allowance	0	0
Average Recorded Investment	3,320	0
Interest Income Recognized	(9)	0
Second Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	695	520
Without Valuation Allowance	583	250
With Valuation Allowance	47	258
Associated Allowance	5	31
Average Recorded Investment	542	603
Interest Income Recognized	12	24
Equity Line of Credit [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	370	371
Without Valuation Allowance	286	369
With Valuation Allowance	0	0
Associated Allowance	0	0
Average Recorded Investment	391	392
Interest Income Recognized	(2)	21
Total Mortgage Loans on Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	21,406	9,640
Without Valuation Allowance	8,355	5,744
With Valuation Allowance	9,099	3,720
Associated Allowance	411	1,005
Average Recorded Investment	16,758	13,659
Interest Income Recognized	379	1,055
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	117	142
Without Valuation Allowance	0	19
With Valuation Allowance	97	110
Associated Allowance	33	23
Average Recorded Investment	104	130
Interest Income Recognized	(14)	2
Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	17
Without Valuation Allowance	17
With Valuation Allowance	0
Associated Allowance	0
Average Recorded Investment	26
Interest Income Recognized	$ 1