Off Balance Sheet Risk (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Off Balance Sheet Risk
Contract amounts representing credit risk	$ 252,664	$ 189,794
Commitments to extend credit
Off Balance Sheet Risk
Contract amounts representing credit risk	245,514	185,415
Standby letters of credit
Off Balance Sheet Risk
Contract amounts representing credit risk	7,150	4,379
Coverage period for instrument	1 year
Credit exposure from the sale of assets with recourse
Off Balance Sheet Risk
Contract amounts representing credit risk	$ 2,757	$ 0