Allowance For Loan Losses (Allowance For Loan Losses) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	$ 16,288,000	$ 15,139,000	$ 16,503,000	$ 14,406,000
Charge-Offs	(127,000)	(246,000)	(784,000)	(719,000)
Recoveries	(240,000)	(131,000)	(593,000)	(788,000)
Recoveries	240,000	131,000	593,000	788,000
Provisions	89,000	550,000	178,000	1,099,000
Balance, end of period	16,490,000	15,574,000	16,490,000	15,574,000
Balance, end of period: Individually evaluated for impairment	921,000	696,000	921,000	696,000
Balance, end of period: Collectively evaluated for impairment	15,569,000	14,878,000	15,569,000	14,878,000
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	6,083,000	6,138,000	6,783,000	6,374,000
Charge-Offs		(91,000)	(231,000)	(564,000)
Recoveries	(223,000)	(109,000)	(572,000)	(699,000)
Recoveries	223,000	109,000	572,000	699,000
Provisions	880,000	547,000	62,000	194,000
Balance, end of period	7,186,000	6,703,000	7,186,000	6,703,000
Balance, end of period: Individually evaluated for impairment	542,000	513,000	542,000	513,000
Balance, end of period: Collectively evaluated for impairment	6,644,000	6,190,000	6,644,000	6,190,000
Real Estate Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	1,218,000	1,876,000	1,143,000	1,035,000
Recoveries	(12,000)	(12,000)	(12,000)	(13,000)
Recoveries	12,000	12,000	12,000	13,000
Provisions	22,000	(256,000)	97,000	584,000
Balance, end of period	1,252,000	1,632,000	1,252,000	1,632,000
Balance, end of period: Individually evaluated for impairment	263,000	183,000	263,000	183,000
Balance, end of period: Collectively evaluated for impairment	989,000	1,449,000	989,000	1,449,000
Real Estate Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	5,197,000	4,305,000	5,529,000	4,270,000
Charge-Offs	(127,000)	(90,000)	(553,000)	(90,000)
Recoveries				(53,000)
Recoveries				53,000
Provisions	323,000	755,000	417,000	737,000
Balance, end of period	5,393,000	4,970,000	5,393,000	4,970,000
Balance, end of period: Individually evaluated for impairment	67,000	0	67,000	0
Balance, end of period: Collectively evaluated for impairment	5,326,000	4,970,000	5,326,000	4,970,000
Home Equity Lines And Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	599,000	601,000	792,000	741,000
Charge-Offs		(65,000)		(65,000)
Recoveries	(5,000)	(10,000)	(9,000)	(23,000)
Recoveries	5,000	10,000	9,000	23,000
Provisions	270,000	373,000	73,000	220,000
Balance, end of period	874,000	919,000	874,000	919,000
Balance, end of period: Individually evaluated for impairment	49,000	0	49,000	0
Balance, end of period: Collectively evaluated for impairment	825,000	919,000	825,000	919,000
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	3,191,000	2,219,000	2,256,000	1,986,000
Provisions	(1,406,000)	(869,000)	(471,000)	(636,000)
Balance, end of period	1,785,000	1,350,000	1,785,000	1,350,000
Balance, end of period: Collectively evaluated for impairment	$ 1,785,000	$ 1,350,000	$ 1,785,000	$ 1,350,000