Loan Servicing (Activity For MSRs And Related Valuation Allowance) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Servicing Asset at Amortized Value, Balance [Roll Forward]
Carrying amount, net, beginning of period	$ 9,476,000	$ 8,880,000	$ 9,266,000	$ 9,008,000
Additions	559,000	747,000	1,434,000	1,618,000
Amortization	(448,000)	(522,000)	(1,213,000)	(1,312,000)
Changes in valuation inputs & assumptions	(108,000)	(360,000)	(8,000)	(569,000)
Carrying amount, net, end of period	9,479,000	8,745,000	9,479,000	8,745,000
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Valuation allowance, beginning of period	635,000	751,000	735,000	542,000
Changes in valuation allowance	(108,000)	(360,000)	(8,000)	(569,000)
Valuation allowance, end of period	$ 743,000	$ 1,111,000	$ 743,000	$ 1,111,000