Goodwill (Schedule Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 12,715	$ 10,520	$ 10,520	$ 10,520
Goodwill, Amortization
Goodwill, Ending Balance	12,715	10,520	12,715	10,520
Intangible Assets, Amortization	(136)	(112)	(400)	(336)
Core Deposit Intangibles [Member]
Goodwill [Line Items]
Intangible Assets, Beginning Balance	162
Intangible Assets, Amortization	(7)		(11)
Intangible Assets, Ending Balance	155		155
Other Intangibles [Member]
Goodwill [Line Items]
Intangible Assets, Beginning Balance	2,345	2,248	2,025	2,472
Intangible Assets, Amortization	(130)	(111)	(390)	(335)
Intangible Assets, Ending Balance	$ 2,215	$ 2,137	2,215	$ 2,137
Benefit Brokers Of WNY, LLC [Member]
Goodwill [Line Items]
Goodwill, Acquisition			427
Benefit Brokers Of WNY, LLC [Member] | Core Deposit Intangibles [Member]
Goodwill [Line Items]
Intangible Assets, Acquisition
Benefit Brokers Of WNY, LLC [Member] | Other Intangibles [Member]
Goodwill [Line Items]
Intangible Assets, Acquisition			580
FSB [Member]
Goodwill [Line Items]
Goodwill, Acquisition			1,768
FSB [Member] | Core Deposit Intangibles [Member]
Goodwill [Line Items]
Intangible Assets, Acquisition			166
FSB [Member] | Other Intangibles [Member]
Goodwill [Line Items]
Intangible Assets, Acquisition