Loan Quality And Allowance for Credit Losses (Schedule Of Loans By Year Of Origination And Internally Assigned Risk Ratings) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	$ 1,563,867		$ 1,563,867		$ 1,398,077
Current period gross charge-offs, total	(41)	$ (27)	(115)	$ (224)
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	35,257		35,257		41,520
Term loans, one year before current fiscal year	56,245		56,245		76,684
Term loans, two years before current fiscal year	73,506		73,506		38,819
Term loans, three years before current fiscal year	34,990		34,990		24,436
Term loans, four years before current fiscal year	22,743		22,743		17,113
Term loans, more than four years before current fiscal year	57,898		57,898		47,995
Revolving loans amortized cost basis	70,718		70,718		58,413
Revolving loans converted to term	16,285		16,285		17,855
Total	367,642		367,642		322,835
Residential Real Estate [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	4,899		4,899		5,306
Term loans, one year before current fiscal year	4,970		4,970		9,436
Term loans, two years before current fiscal year	9,247		9,247		7,529
Term loans, three years before current fiscal year	6,502		6,502		10,133
Term loans, four years before current fiscal year	9,179		9,179		8,099
Term loans, more than four years before current fiscal year	25,220		25,220		20,251
Revolving loans amortized cost basis	5,347		5,347		4,266
Total	65,364		65,364		65,020
Residential Real Estate [Member] | Residential Real Estate Commercial [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	4,899		4,899		5,306
Term loans, one year before current fiscal year	4,970		4,970		9,436
Term loans, two years before current fiscal year	9,247		9,247		7,529
Term loans, three years before current fiscal year	6,502		6,502		10,133
Term loans, four years before current fiscal year	9,179		9,179		8,099
Term loans, more than four years before current fiscal year	25,039		25,039		20,251
Revolving loans amortized cost basis	5,347		5,347		4,079
Total	65,183		65,183		64,833
Residential Real Estate [Member] | Residential Real Estate Commercial [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, more than four years before current fiscal year	181		181
Revolving loans amortized cost basis					187
Total	181		181		187
Residential Real Estate [Member] | Residential Real Estate Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	30,358		30,358		36,214
Term loans, one year before current fiscal year	51,275		51,275		67,248
Term loans, two years before current fiscal year	64,259		64,259		31,290
Term loans, three years before current fiscal year	28,488		28,488		14,303
Term loans, four years before current fiscal year	13,564		13,564		9,014
Term loans, more than four years before current fiscal year	32,678		32,678		27,744
Revolving loans amortized cost basis	65,371		65,371		54,147
Revolving loans converted to term	16,285		16,285		17,855
Total	302,278		302,278		257,815
Residential Real Estate [Member] | Residential Real Estate Consumer [Member] | Performing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	30,358		30,358		36,214
Term loans, one year before current fiscal year	51,275		51,275		67,248
Term loans, two years before current fiscal year	64,259		64,259		31,290
Term loans, three years before current fiscal year	28,488		28,488		14,303
Term loans, four years before current fiscal year	13,564		13,564		9,014
Term loans, more than four years before current fiscal year	32,671		32,671		27,744
Revolving loans amortized cost basis	65,371		65,371		54,147
Revolving loans converted to term	16,285		16,285		17,855
Total	302,271		302,271		257,815
Residential Real Estate [Member] | Residential Real Estate Consumer [Member] | Nonperforming [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, more than four years before current fiscal year	7		7
Total	7		7
Residential Real Estate - Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	18,378		18,378		25,489
Term loans, one year before current fiscal year	29,716		29,716		4,141
Term loans, two years before current fiscal year	2,162		2,162		403
Term loans, three years before current fiscal year	403		403		1,150
Term loans, four years before current fiscal year	388		388		159
Term loans, more than four years before current fiscal year	705		705		1,085
Total	51,752		51,752		32,427
Residential Real Estate - Construction [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	4,427		4,427		5,582
Term loans, one year before current fiscal year	16,330		16,330		3,306
Term loans, two years before current fiscal year	2,162		2,162		403
Term loans, three years before current fiscal year	403		403		1,150
Term loans, four years before current fiscal year	388		388		159
Term loans, more than four years before current fiscal year	705		705		1,085
Total	24,415		24,415		11,685
Residential Real Estate - Construction [Member] | Residential Real Estate Commercial [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	4,427		4,427		5,582
Term loans, one year before current fiscal year	16,330		16,330		3,306
Term loans, two years before current fiscal year	2,162		2,162		403
Term loans, three years before current fiscal year	403		403		1,150
Term loans, four years before current fiscal year	388		388		159
Term loans, more than four years before current fiscal year	705		705		1,085
Total	24,415		24,415		11,685
Residential Real Estate - Construction [Member] | Residential Real Estate Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	13,951		13,951		19,907
Term loans, one year before current fiscal year	13,386		13,386		835
Total	27,337		27,337		20,742
Residential Real Estate - Construction [Member] | Residential Real Estate Consumer [Member] | Performing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	13,951		13,951		19,907
Term loans, one year before current fiscal year	13,386		13,386		835
Total	27,337		27,337		20,742
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	111,137		111,137		95,410
Term loans, one year before current fiscal year	122,903		122,903		228,190
Term loans, two years before current fiscal year	242,370		242,370		108,423
Term loans, three years before current fiscal year	104,131		104,131		94,939
Term loans, four years before current fiscal year	86,477		86,477		39,170
Term loans, more than four years before current fiscal year	226,489		226,489		220,893
Revolving loans amortized cost basis	11,139		11,139		16,340
Total	904,646		904,646		803,365
Current period gross charge-offs, prior					(2)
Current period gross charge-offs, total				(2)	(2)
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	111,137		111,137		95,410
Term loans, one year before current fiscal year	122,903		122,903		221,889
Term loans, two years before current fiscal year	216,532		216,532		106,385
Term loans, three years before current fiscal year	96,841		96,841		93,228
Term loans, four years before current fiscal year	85,782		85,782		32,546
Term loans, more than four years before current fiscal year	214,240		214,240		218,875
Revolving loans amortized cost basis	11,089		11,089		16,290
Total	858,524		858,524		784,623
Commercial Real Estate [Member] | OAEM [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, two years before current fiscal year	3,598		3,598		1,772
Term loans, three years before current fiscal year	7,051		7,051		1,711
Term loans, four years before current fiscal year	695		695		6,624
Term loans, more than four years before current fiscal year	7,306		7,306
Total	18,650		18,650		10,107
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, one year before current fiscal year					6,301
Term loans, two years before current fiscal year	22,240		22,240		266
Term loans, three years before current fiscal year	239		239
Term loans, more than four years before current fiscal year	4,943		4,943		2,018
Revolving loans amortized cost basis	50		50		50
Total	27,472		27,472		8,635
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	13,915		13,915		25,398
Term loans, one year before current fiscal year	24,488		24,488		16,300
Term loans, two years before current fiscal year	13,113		13,113		27,965
Term loans, three years before current fiscal year	22,436		22,436		39,427
Term loans, four years before current fiscal year	36,512		36,512		18,263
Term loans, more than four years before current fiscal year	70,329		70,329		60,126
Revolving loans amortized cost basis	49,492		49,492		43,118
Total	230,285		230,285		230,597
Current period gross charge-offs, current year			(6)		(11)
Current period gross charge-offs, two years before current fiscal year			(15)		(287)
Current period gross charge-offs, prior			(8)
Current period gross charge-offs, revolving loans amortized cost basis					(161)
Current period gross charge-offs, total	(16)	(2)	(29)	(151)	(459)
Commercial [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	13,915		13,915		25,398
Term loans, one year before current fiscal year	23,967		23,967		16,289
Term loans, two years before current fiscal year	13,104		13,104		27,545
Term loans, three years before current fiscal year	21,383		21,383		37,927
Term loans, four years before current fiscal year	35,144		35,144		18,196
Term loans, more than four years before current fiscal year	70,327		70,327		60,126
Revolving loans amortized cost basis	45,297		45,297		42,595
Total	223,137		223,137		228,076
Commercial [Member] | OAEM [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, one year before current fiscal year	521		521		11
Term loans, two years before current fiscal year	9		9		420
Term loans, three years before current fiscal year	1,053		1,053		1,500
Term loans, four years before current fiscal year	1,368		1,368		9
Term loans, more than four years before current fiscal year	2		2
Revolving loans amortized cost basis	3,733		3,733		250
Total	6,686		6,686		2,190
Commercial [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, four years before current fiscal year					58
Revolving loans amortized cost basis	462		462		273
Total	462		462		331
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	1,868		1,868		2,289
Term loans, one year before current fiscal year	1,409		1,409		1,140
Term loans, two years before current fiscal year	844		844		386
Term loans, three years before current fiscal year	241		241		1,683
Term loans, four years before current fiscal year	1,548		1,548		36
Term loans, more than four years before current fiscal year	12		12		27
Revolving loans amortized cost basis	3,620		3,620		3,292
Total	9,542		9,542		8,853
Current period gross charge-offs, current year			(53)		(44)
Current period gross charge-offs, one year before current fiscal year			(5)
Current period gross charge-offs, two years before current fiscal year			(6)
Current period gross charge-offs, three years before current fiscal year			(1)
Current period gross charge-offs, four years before current fiscal year			(1)		(6)
Current period gross charge-offs, prior			(2)
Current period gross charge-offs, revolving loans amortized cost basis			(18)		(49)
Current period gross charge-offs, total	(25)	$ (25)	(86)	$ (71)	(99)
Consumer [Member] | Performing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, current year	1,868		1,868		2,289
Term loans, one year before current fiscal year	1,409		1,409		1,140
Term loans, two years before current fiscal year	844		844		386
Term loans, three years before current fiscal year	241		241		1,682
Term loans, four years before current fiscal year	1,548		1,548		36
Term loans, more than four years before current fiscal year	12		12		27
Revolving loans amortized cost basis	3,615		3,615		3,291
Total	9,537		9,537		8,851
Consumer [Member] | Nonperforming [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Term loans, three years before current fiscal year					1
Revolving loans amortized cost basis	5		5		1
Total	$ 5		$ 5		$ 2