Other Real Estate Owned (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2013 Loan	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other Real Estate Owned [Abstract]
Other real estate owned decrease					$ 471,000
Foreclosed Property [Roll Forward]
Beginning balance	13,002,000	13,264,000	13,435,000		13,435,000
Net proceeds from sales	(1,333,000)	(2,603,000)	(2,277,000)		(6,213,000)	(6,360,000)
Net gain (loss) on sales	629,000	418,000	162,000	228,000	1,209,000	345,000
Assets acquired on non-accrual loans	2,220,000	2,252,000	1,956,000		6,428,000	10,492,000
Impairment charge	(612,000)	(329,000)	(12,000)		(953,000)	(3,413,000)
Ending balance	13,906,000	13,002,000	13,264,000		13,906,000
Other real estate owned (OREO)	13,906,000	13,002,000	13,264,000		13,906,000
Proceeds from sale of collateral related to other real estate owned	1,333,000	2,603,000	2,277,000		6,213,000	6,360,000
Impairment charge for other real estate owned	612,000	329,000	12,000		953,000	3,413,000
Number of lending relationships	4
Land [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales		(765,000)	(1,800,000)
Ending balance	4,300,000				4,300,000
Other real estate owned (OREO)	4,300,000				4,300,000
Proceeds from sale of collateral related to other real estate owned		765,000	1,800,000
Gain (loss) on sale of OREO		12,000	(38,000)
Commercial Real Estate [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales	(118,000)	(99,000)	(24,000)
Ending balance	3,300,000				3,300,000
Other real estate owned (OREO)	3,300,000				3,300,000
Proceeds from sale of collateral related to other real estate owned	118,000	99,000	24,000
Gain (loss) on sale of OREO	79,000	37,000	17,000
Single family homes [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales		(114,000)	(43,000)
Impairment charge		(146,000)
Ending balance	283,000				283,000
Other real estate owned (OREO)	283,000				283,000
Proceeds from sale of collateral related to other real estate owned		114,000	43,000
Gain (loss) on sale of OREO		5,000	3,000
Impairment charge for other real estate owned		146,000
Transfer to other real estate owned			100,000
Number of properties that the collateral was sold			4
Number of lending relationships		2	2
Tax Lien [Member]
Foreclosed Property [Roll Forward]
Ending balance	6,000,000				6,000,000
Other real estate owned (OREO)	6,000,000				6,000,000
Properties With Updated Appraisals Or Agreements To Sale [Member]
Foreclosed Property [Roll Forward]
Impairment charge	(498,000)
Impairment charge for other real estate owned	498,000
Foreclosed Collateral On Tax Liens [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales	(1,200,000)	(1,600,000)	(367,000)
Impairment charge	(114,000)	(183,000)	(12,000)
Proceeds from sale of collateral related to other real estate owned	1,200,000	1,600,000	367,000
Gain (loss) on sale of OREO	547,000	364,000	180,000
Impairment charge for other real estate owned	114,000	183,000	12,000
Transfer to other real estate owned	$ 2,200,000	$ 2,300,000	$ 1,900,000
Number of properties that the collateral was sold	14	15	11