Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012 Impaired Loans Gross [Member]		Jun. 30, 2012 Impairment allocation [Member]		Jun. 30, 2012 Impaired Loans Net [Member]		Jun. 30, 2012 Other Real Estate Owned Fair Value Disclosure [Member]	Jun. 30, 2012 Recurring [Member]	Dec. 31, 2011 Recurring [Member]	Jun. 30, 2012 Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	Dec. 31, 2011 Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	Jun. 30, 2012 Recurring [Member] Significant Other Observable Inputs (Level 2) [Member]	Dec. 31, 2011 Recurring [Member] Significant Other Observable Inputs (Level 2) [Member]	Jun. 30, 2012 Recurring [Member] Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2011 Recurring [Member] Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2012 Nonrecurring [Member]	Dec. 31, 2011 Nonrecurring [Member]	Jun. 30, 2012 Nonrecurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	Dec. 31, 2011 Nonrecurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	Jun. 30, 2012 Nonrecurring [Member] Significant Other Observable Inputs (Level 2) [Member]	Dec. 31, 2011 Nonrecurring [Member] Significant Other Observable Inputs (Level 2) [Member]	Jun. 30, 2012 Nonrecurring [Member] Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2011 Nonrecurring [Member] Significant Unobservable Inputs (Level 3) [Member]
Financial assets and liabilities measured at fair value on a recurring basis [Abstract]
U.S. Treasury									$ 2,109	$ 2,150	$ 0	$ 0	$ 2,109	$ 2,150	$ 0	$ 0
U.S. Government agencies and corporations									114,743	96,003	0	0	114,743	96,003	0	0
State and political subdivisions									42,670	49,122	0	0	42,670	49,122	0	0
Mortgage-backed Securities									5,879	7,725	0	0	5,879	7,725	0	0
Corporate debt securities									20,632	16,077	0	0	20,632	16,077	0	0
Other securities									2,047	2,175	0	0	2,047	2,175	0	0
Total securities available for sale									188,080	173,252	0	0	188,080	173,252	0	0
Period of appraisal of real estate property	12 months
Impaired loans and OREO measured at fair value on nonrecurring basis [Abstract]
Impaired loans net of valuation allowance																	1,181	5,968	0	0	0	0	1,181	5,968
Other real estate owned net of valuation allowance																	871	1,489	0	0	0	0	871	1,489
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Carrying Value, beginning of period		7,091		1,123		5,968		1,489
Additions		1,589		228		1,361		571
Deletions due to Foreclosure		(2,222)		(449)		(1,773)
Sale of Property								(1,130)
Change in Balance/ Valuation Allowance		(564)	[1]	(170)	[1]	(394)	[1]	(59)
Impaired Loans Removed from Level 3		(4,351)	[2]	(370)	[2]	(3,981)	[2]
Carrying Value, end of period		$ 1,543		$ 362		$ 1,181		$ 871

[1] The reported amounts represent changes in the balance due to principal payments by borrowers and reductions in impairment measurements as a result of current valuation procedures.

[2] The reported amount represents loans that were valued using Level 3 inputs as of December 31, 2011 that no longer have impairment allocations under Level 3 valuation, or for which Level 3 impairment allocations were reduced due to a updated valuation analysis.