Goodwill and Intangible Assets (Details) (USD $)	12 Months Ended			12 Months Ended					12 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Dec. 31, 2012 Legacy Merger [Member]	Dec. 31, 2012 Taft Branch [Member]	Dec. 31, 2012 Core Deposits Intangible Assets [Member]	Dec. 31, 2011 Core Deposits Intangible Assets [Member]	Feb. 28, 2007 Core Deposits Intangible Assets [Member]	Dec. 31, 2012 Core Deposits Intangible Assets [Member] Legacy Merger [Member]	Dec. 31, 2011 Core Deposits Intangible Assets [Member] Legacy Merger [Member]	Dec. 31, 2012 Core Deposits Intangible Assets [Member] Taft Branch [Member]	Dec. 31, 2012 Other Intangible Assets [Member]	Dec. 31, 2011 Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 4,488,000	$ 4,488,000		$ 2,900,000
Acquired finite lived intangible assets						249,000	449,000		0		249,000	0	104,000
Total goodwill and intangible assets	4,737,000	5,041,000
Total amortization expense	304,000	620,000				198,000	482,000		12,000	295,000		106,000	138,000
Impairment losses	0	36,000				0	36,000
Impairment losses - goodwill	0	1,489,000
Total impairment losses	0	1,525,000
Total amount of core deposit intangible asset at the time of merger								3,000,000
Estimated life of amortization						7 years						15 years
Estimated value of core deposits intangible assets			226,000
Pre-adjustment carrying value of core deposit intangible assets						262,000
Impairment loss on core deposit intangible, net of tax							21,000
Business Acquisition [Line Items]
Date of acquisition agreement				Feb. 28, 2007	Apr. 30, 2004
Purchase price allocation, goodwill amount				$ 2,900,000