Investment Securities (Unrealized Gain (Loss) on Investments) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Schedule of Investments [Line Items]
Amortized Cost	$ 134,743	$ 150,610
Unrealized Gains	2,150	4,281
Unrealized Losses	2,937	596
Available for sale Securities, Fair Value	133,956	154,295
U.S. Treasury and U.S. government agencies [Member]
Schedule of Investments [Line Items]
Amortized Cost	13,189	16,394
Unrealized Gains	882	1,346
Available for sale Securities, Fair Value	14,071	17,740
Mortgage-backed U.S. government agencies [Member]
Schedule of Investments [Line Items]
Amortized Cost	52,582	66,783
Unrealized Gains	273	393
Unrealized Losses	758	490
Available for sale Securities, Fair Value	52,097	66,686
State and political subdivision obligations [Member]
Schedule of Investments [Line Items]
Amortized Cost	68,572	67,033
Unrealized Gains	995	2,542
Unrealized Losses	2,152	96
Available for sale Securities, Fair Value	67,415	69,479
Equity securities [Member]
Schedule of Investments [Line Items]
Amortized Cost	400	400
Unrealized Losses	27	10
Available for sale Securities, Fair Value	$ 373	$ 390