Other Real Estate Owned - Composition and Other Information (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended		9 Months Ended	12 Months Ended			3 Months Ended				9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 property	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014 Loans [Member] property	Dec. 31, 2013 Loans [Member]	Dec. 31, 2012 Loans [Member]	Sep. 30, 2014 Loans, Land [Member]	Sep. 30, 2014 Loans, Commercial Real Estate [Member]	Mar. 31, 2014 Loans, Commercial Real Estate [Member]	Mar. 31, 2014 Loans, Residential Real Estate [Member]	Sep. 30, 2014 Loans, Residential Real Estate [Member]	Sep. 30, 2014 Tax Lien [Member] property	Dec. 31, 2013 Tax Lien [Member] property	Dec. 31, 2012 Tax Lien [Member]
Composition of OREO
Other real estate owned (OREO)	$ 9,593,000		$ 9,593,000		$ 9,617,000	$ 13,435,000	$ 433,000	$ 1,725,000	$ 11,365,000	$ 229,000				$ 204,000	$ 9,160,000	$ 7,892,000	$ 2,070,000
Number of properties sold			10												30
Proceeds from sale of collateral related to other real estate owned			3,548,000	6,213,000	12,779,000		1,214,000	8,869,000			1,000,000				2,334,000	3,910,000
Net gains on sales of other real estate owned	173,000	629,000	633,000	1,209,000	1,427,000		22,000	228,000			15,000				611,000	1,199,000
Impairment charge for OREO			399,000	953,000	1,517,000		100,000	1,099,000				25,000	75,000		299,000	418,000
Transfer to other real estate owned															$ 2.0
Number of Real Estate Properties							3								73	59
Number of properties transferred to OREO															40