Allowance For Loan Losses (Allowance For Loan Losses) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	$ 16,490,000	$ 15,574,000	$ 16,503,000	$ 14,406,000
Charge-Offs	(69,000)	(354,000)	(853,000)	(1,073,000)
Recoveries	1,506,000	323,000	2,099,000	1,111,000
Provision (benefit)	(1,437,000)	550,000	(1,259,000)	1,649,000
Balance, end of period	16,490,000	16,093,000	16,490,000	16,093,000
Balance, end of period: Individually evaluated for impairment	742,000	790,000	742,000	790,000
Balance, end of period: Collectively evaluated for impairment	15,748,000	15,303,000	15,748,000	15,303,000
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	7,186,000	6,703,000	6,783,000	6,374,000
Charge-Offs	(30,000)	(349,000)	(260,000)	(913,000)
Recoveries	1,429,000	298,000	2,001,000	997,000
Provision (benefit)	(2,713,000)	(621,000)	(2,652,000)	(427,000)
Balance, end of period	5,872,000	6,031,000	5,872,000	6,031,000
Balance, end of period: Individually evaluated for impairment	465,000	710,000	465,000	710,000
Balance, end of period: Collectively evaluated for impairment	5,407,000	5,321,000	5,407,000	5,321,000
Real Estate Construction One-To- Four Family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	849,000	895,000	622,000	459,000
Recoveries	18,000		30,000	1,000
Provision (benefit)	160,000	(371,000)	375,000	64,000
Balance, end of period	1,027,000	524,000	1,027,000	524,000
Balance, end of period: Individually evaluated for impairment	230,000		230,000
Balance, end of period: Collectively evaluated for impairment	797,000	524,000	797,000	524,000
Real Estate Construction Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	403,000	737,000	521,000	576,000
Recoveries		12,000		24,000
Provision (benefit)	(166,000)	266,000	(284,000)	415,000
Balance, end of period	237,000	1,015,000	237,000	1,015,000
Balance, end of period: Individually evaluated for impairment		50,000		50,000
Balance, end of period: Collectively evaluated for impairment	237,000	965,000	237,000	965,000
Real Estate Term Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	1,289,000	1,222,000	1,426,000	1,029,000
Charge-Offs			(274,000)
Provision (benefit)	37,000	210,000	174,000	403,000
Balance, end of period	1,326,000	1,432,000	1,326,000	1,432,000
Balance, end of period: Collectively evaluated for impairment	1,326,000	1,432,000	1,326,000	1,432,000
Real Estate Term Non-Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	3,529,000	3,157,000	3,421,000	2,890,000
Provision (benefit)	303,000	(172,000)	411,000	96,000
Balance, end of period	3,832,000	2,986,000	3,832,000	2,986,000
Balance, end of period: Individually evaluated for impairment		25,000		25,000
Balance, end of period: Collectively evaluated for impairment	3,832,000	2,961,000	3,832,000	2,961,000
Real Estate Term Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	575,000	591,000	681,000	351,000
Charge-Offs			(280,000)	(90,000)
Recoveries	50,000		50,000	53,000
Provision (benefit)	(36,000)	498,000	138,000	776,000
Balance, end of period	589,000	1,090,000	589,000	1,090,000
Balance, end of period: Individually evaluated for impairment	34,000		34,000
Balance, end of period: Collectively evaluated for impairment	555,000	1,090,000	555,000	1,090,000
Consumer Secured By 1st Deed Of Trust [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	428,000	446,000	402,000	337,000
Provision (benefit)	(92,000)	(138,000)	(66,000)	(29,000)
Balance, end of period	336,000	308,000	336,000	308,000
Balance, end of period: Individually evaluated for impairment	13,000		13,000
Balance, end of period: Collectively evaluated for impairment	323,000	308,000	323,000	308,000
Consumer Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	446,000	473,000	390,000	404,000
Charge-Offs	(39,000)	(5,000)	(39,000)	(70,000)
Recoveries	9,000	13,000	18,000	36,000
Provision (benefit)	97,000	(175,000)	144,000	(64,000)
Balance, end of period	513,000	306,000	513,000	306,000
Balance, end of period: Individually evaluated for impairment		5,000		5,000
Balance, end of period: Collectively evaluated for impairment	513,000	301,000	513,000	301,000
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	1,785,000	1,350,000	2,256,000	1,986,000
Provision (benefit)	973,000	1,052,000	502,000	416,000
Balance, end of period	2,758,000	2,402,000	2,758,000	2,402,000
Balance, end of period: Collectively evaluated for impairment	$ 2,758,000	$ 2,402,000	$ 2,758,000	$ 2,402,000