Loans Receivable And Credit Quality (Schedule Of Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	$ 6,900	$ 6,900
Recorded Investment, With an allowance recorded	3,400	3,400
Total Recorded Investment Impaired	10,334	10,334	$ 11,180
Total Unpaid Principal Balance Impaired	10,816	10,816	11,751
Related Allowance	313	313	296
Total Average Recorded Investment Impaired	10,478	10,711	8,766
Total Interest Income Recognized Impaired	72	144	316
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	5,581	5,581	8,159
Recorded Investment, With an allowance recorded	1,992	1,992
Total Recorded Investment Impaired	7,573	7,573	8,159
Unpaid Principal Balance, With no related allowance recorded	5,600	5,600	8,463
Unpaid Principal Balance, With an allowance recorded	2,256	2,256
Total Unpaid Principal Balance Impaired	7,856	7,856	8,463
Related Allowance	28	28
Average Recorded Investment, With no related allowance recorded	6,655	7,156	5,924
Average Recorded Investment, With an allowance recorded	996	664
Total Average Recorded Investment Impaired	7,651	7,820	5,924
Interest Income Recognized, With no related allowance recorded	51	112	255
Interest Income Recognized, With an allowance recorded	10	10
Total Interest Income Recognized Impaired	61	122	255
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded			100
Recorded Investment, With an allowance recorded	247	247	279
Total Recorded Investment Impaired	247	247	379
Unpaid Principal Balance, With no related allowance recorded			160
Unpaid Principal Balance, With an allowance recorded	247	247	279
Total Unpaid Principal Balance Impaired	247	247	439
Related Allowance	41	41	64
Average Recorded Investment, With no related allowance recorded	50	67	50
Average Recorded Investment, With an allowance recorded	248	258	263
Total Average Recorded Investment Impaired	298	325	313
Interest Income Recognized, With no related allowance recorded			2
Interest Income Recognized, With an allowance recorded	3	5	12
Total Interest Income Recognized Impaired	3	5	14
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	980	980	1,516
Recorded Investment, With an allowance recorded	1,219	1,219	811
Total Recorded Investment Impaired	2,199	2,199	2,327
Unpaid Principal Balance, With no related allowance recorded	1,179	1,179	1,723
Unpaid Principal Balance, With an allowance recorded	1,219	1,219	811
Total Unpaid Principal Balance Impaired	2,398	2,398	2,534
Related Allowance	244	244	232
Average Recorded Investment, With no related allowance recorded	1,204	1,308	1,050
Average Recorded Investment, With an allowance recorded	1,010	943	914
Total Average Recorded Investment Impaired	2,214	2,251	1,964
Interest Income Recognized, With no related allowance recorded	(2)	3	23
Interest Income Recognized, With an allowance recorded	8	9	5
Total Interest Income Recognized Impaired	6	12	28
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded
Recorded Investment, With an allowance recorded
Total Recorded Investment Impaired
Unpaid Principal Balance, With no related allowance recorded
Unpaid Principal Balance, With an allowance recorded
Total Unpaid Principal Balance Impaired
Related Allowance
Average Recorded Investment, With no related allowance recorded
Average Recorded Investment, With an allowance recorded
Total Average Recorded Investment Impaired
Interest Income Recognized, With no related allowance recorded
Interest Income Recognized, With an allowance recorded
Total Interest Income Recognized Impaired
Construction [Member] \| Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment, With no related allowance recorded	315	315	315
Total Recorded Investment Impaired	315	315	315
Unpaid Principal Balance, With no related allowance recorded	315	315	315
Total Unpaid Principal Balance Impaired	315	315	315
Average Recorded Investment, With no related allowance recorded	315	315	565
Total Average Recorded Investment Impaired	315	315	565
Interest Income Recognized, With no related allowance recorded	2	5	19
Total Interest Income Recognized Impaired	$ 2	$ 5	$ 19

Impaired Financing Receivable With No Related Allowance Interest Income (Reversal) Accrual Method

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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-Subparagraph (c)(1)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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