Other Real Estate Owned (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Other Real Estate Owned [Abstract]
Other real estate owned increase					$ 1,100,000
Foreclosed Property [Roll Forward]
Beginning balance	23,727,000	24,304,000	21,016,000		21,016,000
Net proceeds from sales	(907,000)	(922,000)	(4,531,000)
Net gain (loss) on sales	228,000	255,000	(138,000)	206,000	345,000	1,500,000
Assets acquired on non-accrual loans	1,396,000	1,086,000	8,010,000
Impairment charge	(2,364,000)	(996,000)	(53,000)	(1,493,000)	(3,413,000)	(4,633,000)
Ending balance	22,080,000	23,727,000	24,304,000	21,900,000	22,080,000	21,900,000
Other Real Estate Owned Additional Disclosures [Line Items]
Other real estate owned	22,080,000	23,727,000	24,304,000	21,900,000	22,080,000	21,900,000
Proceeds from sale of collateral related to loans or other real estate owned	907,000	922,000	4,531,000
Gain (loss) on sale of OREO	228,000	255,000	(138,000)	206,000	345,000	1,500,000
Impairment charge for other real estate owned	2,364,000	996,000	53,000	1,493,000	3,413,000	4,633,000
Foreclosed Properties Acquired	1,396,000	1,086,000	8,010,000
Land [Member]
Foreclosed Property [Roll Forward]
Ending balance	10,300,000				10,300,000
Other Real Estate Owned Additional Disclosures [Line Items]
Other real estate owned	10,300,000				10,300,000
Commercial Real Estate [Member]
Foreclosed Property [Roll Forward]
Ending balance	4,000,000				4,000,000
Other Real Estate Owned Additional Disclosures [Line Items]
Other real estate owned	4,000,000				4,000,000
Multi family [Member]
Foreclosed Property [Roll Forward]
Ending balance	4,300,000				4,300,000
Other Real Estate Owned Additional Disclosures [Line Items]
Other real estate owned	4,300,000				4,300,000
Single Family Homes [Member]
Foreclosed Property [Roll Forward]
Ending balance	527,000				527,000
Other Real Estate Owned Additional Disclosures [Line Items]
Other real estate owned	527,000				527,000
Selling Single family homes related to Three loans [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales			(104,000)
Net gain (loss) on sales			3,000
Impairment charge			(44,000)
Other Real Estate Owned Additional Disclosures [Line Items]
Proceeds from sale of collateral related to loans or other real estate owned			104,000
Gain (loss) on sale of OREO			3,000
Impairment charge for other real estate owned			44,000
Four Collateral Loans [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales		(433,000)
Net gain (loss) on sales		133,000
Other Real Estate Owned Additional Disclosures [Line Items]
Proceeds from sale of collateral related to loans or other real estate owned		433,000
Gain (loss) on sale of OREO		133,000
Collateral Related To Commercial Real Estate [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales			(4,100,000)
Net gain (loss) on sales			36,000
Impairment charge		(442,000)
Other Real Estate Owned Additional Disclosures [Line Items]
Proceeds from sale of collateral related to loans or other real estate owned			4,100,000
Gain (loss) on sale of OREO			36,000
Impairment charge for other real estate owned		442,000
Tax Lien [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales	(872,000)	(489,000)	(332,000)
Net gain (loss) on sales	230,000	122,000	(177,000)
Assets acquired on non-accrual loans	1,400,000	1,100,000	789,000
Impairment charge	(54,000)	(554,000)	(9,000)
Ending balance	2,900,000				2,900,000
Other Real Estate Owned Additional Disclosures [Line Items]
Other real estate owned	2,900,000				2,900,000
Proceeds from sale of collateral related to loans or other real estate owned	872,000	489,000	332,000
Gain (loss) on sale of OREO	230,000	122,000	(177,000)
Impairment charge for other real estate owned	54,000	554,000	9,000
Foreclosed Properties Acquired	1,400,000	1,100,000	789,000
Two Collateral Loans [Member]
Foreclosed Property [Roll Forward]
Net proceeds from sales	(35,000)
Net gain (loss) on sales	(2,000)
Other Real Estate Owned Additional Disclosures [Line Items]
Proceeds from sale of collateral related to loans or other real estate owned	35,000
Gain (loss) on sale of OREO	(2,000)
Five Properties [Member]
Foreclosed Property [Roll Forward]
Impairment charge	(2,300,000)
Other Real Estate Owned Additional Disclosures [Line Items]
Impairment charge for other real estate owned	2,300,000
Participation Loan Collateral Acquired [Member]
Other Real Estate Owned Additional Disclosures [Line Items]
Transfer of fair value of hotel to OREO			3,200,000
Ownership percentage of foreclosed properties (in hundredths)	7.50%				7.50%
Prior period write down on foreclosed property			$ 1,500,000