Employee Benefit Plans (Assumed Benefit Obligations) (Details) (CommunityOne [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Integrity Financial Corporation [Member] | Former president of acquiree [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Benefit payments, payable period	10 years
Provision expense for future benefits	$ 17,000	$ 39,000	$ 49,000
Payments made under provisions of the non-qualifying deferred compensation plan	78,000	80,000	76,000
Integrity Financial Corporation [Member] | Former president of acquiree [Member] | Other liabilities [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Non-qualifying deferred compensation plan liability	300,000	400,000
Carolina Fincorp, Inc. [Member] | Retired executive of acquiree [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Benefit amount per year	$ 30,000
Benefit payments, payable period	10 years