Other Real Estate Owned (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Other Real Estate Owned [Abstract]
Other real estate owned decrease	$ 171,000
Foreclosed Property [Roll Forward]
Beginning balance	13,435,000
Net proceeds from sales	(2,277,000)	(4,531,000)
Net (loss) gain on sales	162,000	(138,000)
Assets acquired on loans	1,956,000	8,010,000
Impairment charge	(12,000)	(53,000)
Ending balance	13,264,000
Other real estate owned (OREO)	13,264,000
Land [Member]
Foreclosed Property [Roll Forward]
Ending balance	5,300,000
Other real estate owned (OREO)	5,300,000
Proceeds from sale of collateral related to loans or other real estate owned	1,800,000
Gain (loss) on sale of OREO	38,000
Commercial Real Estate [Member]
Foreclosed Property [Roll Forward]
Ending balance	3,700,000
Other real estate owned (OREO)	3,700,000
Proceeds from sale of collateral related to loans or other real estate owned	24,000
Gain (loss) on sale of OREO	17,000
Single family homes [Member]
Foreclosed Property [Roll Forward]
Ending balance	588,000
Other real estate owned (OREO)	588,000
Proceeds from sale of collateral related to loans or other real estate owned	43,000
Gain (loss) on sale of OREO	3,000
Number of loans that the collateral was sold	4
Number of lending relationships	2
Tax Lien [Member]
Foreclosed Property [Roll Forward]
Ending balance	3,700,000
Other real estate owned (OREO)	3,700,000
Foreclosed Collateral On Residential Loans [Member]
Foreclosed Property [Roll Forward]
Transfer to other real estate owned	100,000
Foreclosed Collateral On Tax Liens [Member]
Foreclosed Property [Roll Forward]
Proceeds from sale of collateral related to loans or other real estate owned	367,000
Gain (loss) on sale of OREO	180,000
Impairment charge for other real estate owned	12,000
Transfer to other real estate owned	$ 1,900,000
Number of loans that the collateral was sold	11