Allowance For Loan Losses (Balance Of The Allowance Segregated By Segment And Class) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 742			$ 790
Collectively evaluated for impairment	15,748			15,303
Total	16,490	16,490	16,503	16,093	15,574	14,406
Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	41			25
Collectively evaluated for impairment	12,262			10,023
Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	78			20
Collectively evaluated for impairment	458			1,102
Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	264			99
Collectively evaluated for impairment	270			1,776
Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	186			218
Collectively evaluated for impairment
Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	173			428
Collectively evaluated for impairment
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	2,758			2,402
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	465			710
Collectively evaluated for impairment	5,407			5,321
Total	5,872	7,186	6,783	6,031	6,703	6,374
Commercial [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	28
Collectively evaluated for impairment	5,079			4,207
Commercial [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	78			20
Collectively evaluated for impairment	293			1,027
Commercial [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				44
Collectively evaluated for impairment	35			87
Commercial [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	186			218
Collectively evaluated for impairment
Commercial [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	173			428
Collectively evaluated for impairment
Real Estate Construction One-To- Four Family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	230
Collectively evaluated for impairment	797			524
Total	1,027	849	622	524	895	459
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	743			524
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	41
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	230
Collectively evaluated for impairment	13
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Construction Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				50
Collectively evaluated for impairment	237			965
Total	237	403	521	1,015	737	576
Real Estate Construction Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	225			247
Real Estate Construction Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				50
Collectively evaluated for impairment	12			718
Real Estate Construction Other [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Construction Other [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Term Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	1,326			1,432
Total	1,326	1,289	1,426	1,432	1,222	1,029
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	1,244			1,156
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	43			9
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	39			267
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Term Non-Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				25
Collectively evaluated for impairment	3,832			2,961
Total	3,832	3,529	3,421	2,986	3,157	2,890
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				25
Collectively evaluated for impairment	3,795			2,813
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	34			39
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	3			109
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Term Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	34
Collectively evaluated for impairment	555			1,090
Total	589	575	681	1,090	591	351
Real Estate Term Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	554			491
Real Estate Term Other [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	1			4
Real Estate Term Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	34
Collectively evaluated for impairment				594
Real Estate Term Other [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Real Estate Term Other [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Consumer Secured By 1st Deed Of Trust [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	13
Collectively evaluated for impairment	323			308
Total	336	428	402	308	446	337
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	13
Collectively evaluated for impairment	273			300
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	25			8
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	25
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Consumer Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				5
Collectively evaluated for impairment	513			301
Total	513	446	390	306	473	404
Consumer Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	349			285
Consumer Other [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	21			15
Consumer Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				5
Collectively evaluated for impairment	143			1
Consumer Other [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Consumer Other [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	2,758			2,402
Total	2,758	1,785	2,256	2,402	1,350	1,986
Unallocated [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Unallocated [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment
Unallocated [Member] | Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	$ 2,758			$ 2,402