Acquisitions and FDIC Indemnification Asset (Details Textual) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2012	Sep. 30, 2014 First National Bank Of Danville [Member]	Aug. 16, 2013 Bank Of Amercia [Member]
Business Acquisition [Line Items]
Loans							$ 1,900,000
Cash and cash equivalents							177,700,000
Deposits							189,300,000
Customer related core deposit intangible asset							2,200,000
Reimbursements from the FDIC	374,000	650,000	352,000			19,000,000
Outstanding balance for reimbursement of losses	375,000	375,000	1,055,000	420,000	2,632,000
Fixed Assets							5,900,000
Other liabilities							300,000
Goodwill	39,489,000	39,489,000	39,489,000				1,900,000
Business Aquisition, Loss Sharing Agreement Losses On Assets Threshold						29,000,000
Business Acquisition Loss Sharing Agreement Losses In Excess Of Threshold To Be Reimbursed Percentage						95.00%
Business Acquisition, Loss Sharing Agreement Losses Up To Threshold To Be Reimbursed Percentage						80.00%
Loans and Leases Receivable, Net of Loans with Deteriorated Credit Quality, Covered	$ 7,800,000	$ 7,800,000	$ 18,500,000