Loan Servicing (Activity For MSRs And Related Valuation Allowance) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Servicing Asset at Amortized Value, Balance [Roll Forward]
Carrying amount, net, beginning of period	$ 9,969,000	$ 9,321,000	$ 9,688,000	$ 9,266,000
Additions	448,000	521,000	776,000	875,000
Amortization	(417,000)	(407,000)	(769,000)	(765,000)
Changes in valuation inputs & assumptions	77,000	41,000	(382,000)	(100,000)
Carrying amount, net, end of period	10,077,000	9,476,000	10,077,000	9,476,000
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Valuation allowance, beginning of period	325,000	676,000	630,000	735,000
Changes in valuation allowance	77,000	41,000	382,000	100,000
Valuation allowance, end of period	$ 248,000	$ 635,000	$ 248,000	$ 635,000