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Loans And Leases (Balance In ALLL And Recorded Investment In Loans By Portfolio Segment And Based On Impairment Method) (Details) - USD ($) $ in Thousands		Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment		$ 31		$ 22
Collectively evaluated for impairment		6,933		6,903
Total ending allowance balance		6,964	$ 6,958	6,925	$ 6,893	$ 6,613	$ 6,620
Individually evaluated for impairment		4,575		3,448
Collectively evaluated for impairment		390,138		349,602
Subtotal		394,713		353,050
Single-Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment		937		735
Total ending allowance balance		937	956	735	824	875	691
Individually evaluated for impairment		117		122
Collectively evaluated for impairment		92,908		92,422
Subtotal		93,025		92,544
Multi-Family Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment		797		716
Total ending allowance balance		797	725	716	715	694	705
Individually evaluated for impairment		31		37
Collectively evaluated for impairment		38,682		34,254
Subtotal		38,713		34,291
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment		638		580
Total ending allowance balance		638	586	580	503	478	561
Collectively evaluated for impairment		38,744		25,822
Subtotal		38,744		25,822
Home Equity Lines of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment		588		486
Total ending allowance balance		588	554	486	492	534	474
Collectively evaluated for impairment		24,751		23,109
Subtotal		24,751		23,109
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				1
Collectively evaluated for impairment		1,883		1,646
Total ending allowance balance		1,883	1,770	1,647	1,705	1,458	1,380
Individually evaluated for impairment		336		557
Collectively evaluated for impairment		91,074		70,777
Subtotal	[1]	91,410		71,334
Real Estate Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment		31		21
Collectively evaluated for impairment		2,088		2,706
Total ending allowance balance		2,119	2,365	2,727	2,615	2,567	2,710
Individually evaluated for impairment		4,091		2,732
Collectively evaluated for impairment		103,614		102,581
Subtotal		107,705		105,313
Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment		2		34
Total ending allowance balance		2	$ 2	34	$ 39	$ 7	$ 99
Collectively evaluated for impairment		365		637
Subtotal		$ 365		$ 637
[1] Includes $6,156 and $2,874 of commercial leases at September 30, 2017 and December 31, 2016, respectively.

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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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