Allowance For Loan Losses (Balance Of The Allowance Segregated By Segment And Class) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 659		$ 778
Collectively evaluated for impairment	15,982		15,510
Total	16,641	16,408	16,288	16,503
Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	14,012	12,930
Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	592	490
Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	508	284
Collectively evaluated for impairment	231	362
Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment		374
Collectively evaluated for impairment	4
Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	151
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	1,143	1,968
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	395		436
Collectively evaluated for impairment	6,522		5,647
Total	6,917	6,308	6,083	6,783
Commercial [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	6,163	5,520
Commercial [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	332	321
Commercial [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	244	284
Collectively evaluated for impairment	23	23
Commercial [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment		160
Collectively evaluated for impairment	4
Commercial [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	151
Real Estate Construction One-To- Four Family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	242
Collectively evaluated for impairment	484		728
Total	726	1,029	728	468
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	599	711
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	37	16
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	90	88
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment		214
Collectively evaluated for impairment
Real Estate Construction Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment			342
Collectively evaluated for impairment	571		148
Total	571	326	490	1,169
Real Estate Construction Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	297	326
Real Estate Construction Other [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	32
Real Estate Construction Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	242
Real Estate Construction Other [Member] | Asset Quality Rating - Doubtful [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	1,434		1,174
Total	1,434	1,441	1,174	1,272
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	1,304	1,242
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	103	51
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	27	148
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 Non-Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	4,442		3,430
Total	4,442	4,065	3,430	2,975
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	4,338	3,961
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	36	34
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	68	70
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 Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	655		593
Total	655	539	593	788
Real Estate Term Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	655	539
Real Estate Term Other [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]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	22
Collectively evaluated for impairment	329		297
Total	351	344	297	374
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	291	280
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	38	56
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	22
Collectively evaluated for impairment		8
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 Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	402		302
Total	402	388	302	418
Consumer Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	365	351
Consumer Other [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	14	12
Consumer Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	23	25
Consumer Other [Member] | Asset Quality Rating - Doubtful [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	1,143		3,191
Total	1,143	1,968	3,191	2,256
Unallocated [Member] | Asset Quality Rating - Doubtful [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	$ 1,143	$ 1,968