Condensed Financial Information (Parent Company Only) - Condensed Statements of Income and Comprehensive Income - (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Income
Other income									$ 5,769	$ 3,008
Expenses
Interest expense	1,194	1,230	1,266	1,310	1,416	1,464	1,468	1,475	5,000	5,823
Other expenses									12,026	10,251
Income before income tax and equity in undistributed income of subsidiary									4,871	1,875
Income tax benefit									859	103
Net Income	1,882	846	692	592	555	(207)	622	802	4,012	1,772
Comprehensive Income									4,092	3,146
Parent Company
Income
Dividends from the Bank									2,000	2,000
Other income									1	1
Total income									2,001	2,001
Expenses
Interest expense									265	253
Other expenses									280	262
Total expenses									545	515
Income before income tax and equity in undistributed income of subsidiary									1,456	1,486
Income tax benefit									268	224
Income before equity in undistributed income of subsidiary									1,724	1,710
Equity in undistributed income of the Bank									2,288	62
Net Income									4,012	1,772
Comprehensive Income									$ 4,092	$ 3,146