Loans (Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 10,152		$ 11,683
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,459		1,410
Recorded Investment	11,611		13,093
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	10,639		12,207
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,459		1,410
Unpaid Principal Balance	12,098		13,617
Related Allowance	659		659
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	10,287	10,800
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,483	2,048
Average Recorded Investment	11,770	12,848
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	102	110
Interest Income Recognized	102	110
Commercial [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment			53
Recorded Investment			53
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance			53
Unpaid Principal Balance			53
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		744
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		180
Average Recorded Investment		924
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		14
Interest Income Recognized		14
Commercial [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	523		332
Recorded Investment	523		332
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	523		332
Unpaid Principal Balance	523		332
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	486	178
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		258
Average Recorded Investment	486	436
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	11	2
Interest Income Recognized	11	2
Commercial [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	941		981
Impaired Financing Receivable, with Related Allowance, Recorded Investment	309		427
Recorded Investment	1,250		1,408
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	986		1,064
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	309		427
Unpaid Principal Balance	1,295		1,491
Related Allowance	244		284
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	962	803
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	315	207
Average Recorded Investment	1,277	1,010
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	14	3
Interest Income Recognized	14	3
Commercial [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment			189
Recorded Investment	183		189
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance			189
Unpaid Principal Balance	183		189
Related Allowance	151		160
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		1,074
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		221
Average Recorded Investment		1,295
Commercial [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	183
Recorded Investment	470
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	183
Unpaid Principal Balance	470
Related Allowance	151
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		112
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	187	218
Average Recorded Investment	187	330
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	470		470
Recorded Investment			470
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	470		470
Unpaid Principal Balance			470
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	470
Average Recorded Investment	470
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	770
Recorded Investment	770
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	770
Unpaid Principal Balance	770
Related Allowance	242
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	782	964
Average Recorded Investment	782	964
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment			794
Unpaid Principal Balance			794
Related Allowance			215
Real Estate Construction Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,497
Recorded Investment	2,497
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,498
Unpaid Principal Balance	2,498
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	2,623
Average Recorded Investment	2,623
Real Estate Construction Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment			2,748
Impaired Financing Receivable, with Related Allowance, Recorded Investment			794
Recorded Investment			2,748
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance			2,748
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance			794
Unpaid Principal Balance			2,748
Related Allowance			215
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,081		1,083
Recorded Investment	1,081		1,083
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,081		1,083
Unpaid Principal Balance	1,081		1,083
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,082	505
Average Recorded Investment	1,082	505
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	20	7
Interest Income Recognized	20	7
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		373
Average Recorded Investment		373
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Loss [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	405
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	405
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	406
Average Recorded Investment	406
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	5
Interest Income Recognized	5
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment			555
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance			555
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		1,651
Average Recorded Investment		1,651
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		31
Interest Income Recognized		31
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	546
Recorded Investment	546		555
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	546
Unpaid Principal Balance	546		555
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	550
Average Recorded Investment	550
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	9
Interest Income Recognized	9
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,677		1,705
Recorded Investment	1,677		1,705
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,677		1,705
Unpaid Principal Balance	1,677		1,705
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,691	2,278
Average Recorded Investment	1,691	2,278
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	33	44
Interest Income Recognized	33	44
Real Estate Term Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		161
Average Recorded Investment		161
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		6
Interest Income Recognized		6
Real Estate Term Other [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment			126
Recorded Investment			126
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance			205
Unpaid Principal Balance			205
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		164
Average Recorded Investment		164
Real Estate Term Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,605		3,379
Recorded Investment	1,605		3,379
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,964		3,659
Unpaid Principal Balance	1,964		3,659
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,607	2,488
Average Recorded Investment	1,607	2,488
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	7
Interest Income Recognized	7
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	91		93
Recorded Investment	91		93
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	91		93
Unpaid Principal Balance	91		93
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	92	96
Average Recorded Investment	92	96
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	1	1
Interest Income Recognized	1	1
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	86
Recorded Investment	86
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	86
Unpaid Principal Balance	86
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	86
Average Recorded Investment	86
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	1
Interest Income Recognized	1
Consumer Secured By 1st Deed Of Trust [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	197
Recorded Investment	197
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	197
Unpaid Principal Balance	197
Related Allowance	22
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	199
Average Recorded Investment	199
Consumer Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	230
Recorded Investment	230
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	312
Unpaid Principal Balance	312
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		121
Average Recorded Investment		121
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		2
Interest Income Recognized		2
Consumer Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	232	52
Average Recorded Investment	232	52
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	1
Interest Income Recognized	1
Consumer Other [Member] | Asset Quality Rating - Doubtful [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment			158
Recorded Investment			158
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance			240
Unpaid Principal Balance			$ 240