Loans and Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Composition of the loan portfolio
Total loans	$ 297,463	$ 317,282
Commercial real estate
Composition of the loan portfolio
Total loans	197,547	193,417
Percentage of loans	66.50%	61.10%
Commercial
Composition of the loan portfolio
Total loans	39,671	62,312
Percentage of loans	13.30%	19.60%
Residential real estate
Composition of the loan portfolio
Total loans	38,437	39,091
Percentage of loans	12.90%	12.30%
Consumer - other
Composition of the loan portfolio
Total loans	4,225	4,552
Percentage of loans	1.40%	1.40%
Consumer - home equity
Composition of the loan portfolio
Total loans	$ 17,583	$ 17,910
Percentage of loans	5.90%	5.60%