Goodwill and Other Intangible Assets (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Changes in the carrying amount of goodwill [Roll Forward]
Goodwill, beginning of period			$ 39,043,000
Goodwill, Additions			0
Goodwill, Amortization			0
Goodwill, Impairment			0
Goodwill, end of period	39,043,000		39,043,000
Finite-lived Intangible Assets [Roll Forward]
Intangibles, Beginning Balance			3,159,000
Intangibles, Additions			0
Intangibles, Amortization	(227,000)	(330,000)	(888,000)	(1,171,000)
Intangibles, Impairment			0
Intangibles, Ending Balance	2,271,000		2,271,000
MidCarolina [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Core deposit intangible	6,556,000		6,556,000
Amortization period of intangible			108 months
Community First [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Core deposit intangible	$ 3,112,000		$ 3,112,000
Amortization period of intangible			99 months