Investment Securities (Details 4) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	$ 173	$ 9	$ 29
Twelve Months or More		31	25
Securities Available for Sale, Fair Value
Less Than Twelve Months	28,913	12,526	9,838
Twelve Months or More		724	476
State and municipal obligations
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	44		3
Twelve Months or More		31	25
Securities Available for Sale, Fair Value
Less Than Twelve Months	5,983	420	675
Twelve Months or More		724	476
Government-sponsored entities debt
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	1	3	9
Securities Available for Sale, Fair Value
Less Than Twelve Months	3,979	5,505	5,502
Mortgage-backed securities
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	82	6	6
Securities Available for Sale, Fair Value
Less Than Twelve Months	18,849	6,601	3,647
FHLMC preferred stock
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	46
Securities Available for Sale, Fair Value
Less Than Twelve Months	102
Corporate stocks
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months			11
Securities Available for Sale, Fair Value
Less Than Twelve Months			$ 14