Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended						12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 MidCarolina [Member]	Dec. 31, 2011 MidCarolina [Member]	Jul. 01, 2011 MidCarolina [Member]	Dec. 31, 2013 Community First [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Core deposit intangible	$ 0	$ 0	$ 6,556,000	$ 6,556,000,000		$ 6,556,000	$ 3,112,000,000
Intangibles, Amortization	1,501,000	1,935,000	1,282,000
Amortization period of intangible	9 years			108 months			99 months
Changes in the carrying amount of goodwill [Roll Forward]
Goodwill, beginning of period	39,043,000			16,575,000	16,575,000	16,575,000
Goodwill, Additions	0
Goodwill, Amortization	0
Goodwill, Impairment	0	0	0
Goodwill, end of period	39,043,000	39,043,000			16,575,000	16,575,000
Finite-lived Intangible Assets [Roll Forward]
Intangibles, Beginning Balance	4,660,000
Intangibles, Additions	0
Intangibles, Amortization	(1,501,000)	(1,935,000)	(1,282,000)
Intangibles, Impairment	0
Intangibles, Ending Balance	3,159,000	4,660,000
Gross Carrying Value [Abstract]
Core deposit intangibles	9,669,000	9,669,000
Goodwill	39,043,000	39,043,000
Accumulated Amortization [Abstract]
Core deposit intangibles	(6,510,000)	(5,009,000)
Goodwill	0	0
Net Carrying Value [Abstract]
Core deposit intangibles	3,159,000	4,660,000
Goodwill	39,043,000	39,043,000			16,575,000	16,575,000
Amortization expense of core deposit intangibles	1,501,000	1,935,000	1,282,000
Estimated future amortization expense of core deposit intangibles [Abstract]
2014	1,114,000
2015	906,000
2016	717,000
2017	320,000
2018	68,000
2019 and after	34
Total	$ 3,159,000	$ 4,660,000