Loans (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Allowance for loan losses:
Individually evaluated for impairment	$ 3,023	$ 3,661
Collectively evaluated for impairment	5,232	6,573
Total ending allowance balance	8,255	10,234
Loans:
Loans individually evaluated for impairment	32,885	40,306
Loans collectively evaluated for impairment	439,665	459,668
Total ending loans balance	472,550	499,974
Commercial Loan [Member]
Allowance for loan losses:
Individually evaluated for impairment	85	517
Collectively evaluated for impairment	2,057	2,482
Total ending allowance balance	2,142	2,999
Loans:
Loans individually evaluated for impairment	1,171	1,548
Loans collectively evaluated for impairment	97,860	99,336
Total ending loans balance	99,031	100,884
Construction Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment	1,207	815
Collectively evaluated for impairment	149	297
Total ending allowance balance	1,356	1,112
Loans:
Loans individually evaluated for impairment	13,209	13,902
Loans collectively evaluated for impairment	26,999	30,820
Total ending loans balance	40,208	44,722
Commercial Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	785	1,749
Collectively evaluated for impairment	1,487	1,458
Total ending allowance balance	2,272	3,207
Loans:
Loans individually evaluated for impairment	11,803	20,899
Loans collectively evaluated for impairment	159,602	149,824
Total ending loans balance	171,405	170,723
Residential Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	945	563
Collectively evaluated for impairment	1,386	2,118
Total ending allowance balance	2,331	2,681
Loans:
Loans individually evaluated for impairment	6,648	3,811
Loans collectively evaluated for impairment	148,770	172,075
Total ending loans balance	155,418	175,886
Consumer Loan [Member]
Allowance for loan losses:
Individually evaluated for impairment	1	17
Collectively evaluated for impairment	153	218
Total ending allowance balance	154	235
Loans:
Loans individually evaluated for impairment	54	146
Loans collectively evaluated for impairment	6,434	7,613
Total ending loans balance	$ 6,488	$ 7,759