Loans And Allowance For Loan Losses (Age Analysis Of Past Due Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 28,054	$ 21,522
Current	1,852,058	1,757,907
Loans receivable	1,880,112	1,779,429	$ 1,548,094
Recorded loans > 90 days and accruing	415	500
30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,530	1,164
90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	24,524	20,358
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	893,807	938,462
One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	193,678	161,958
Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	206,671	150,407
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	19,553	21,429
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	566,403	507,173
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	8,322	4,264
Current	885,485	934,198
Loans receivable	893,807	938,462	869,250
Recorded loans > 90 days and accruing		449
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	702	272
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	7,620	3,992
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,043	493
Current	183,168	128,577
Loans receivable	184,211	129,070
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	418
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	625	493
Residential Portfolio Segment [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,508	2,326
Current	190,170	159,632
Loans receivable	193,678	161,958	95,906
Recorded loans > 90 days and accruing	31	48
Residential Portfolio Segment [Member] | One-To-Four Family Residential [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	526	549
Residential Portfolio Segment [Member] | One-To-Four Family Residential [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,982	1,777
Residential Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	448	517
Current	22,012	20,820
Loans receivable	22,460	21,337
Residential Portfolio Segment [Member] | Construction Loans [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	448	517
Real Estate Construction [Member] | Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	206,671		139,273
Commercial Portfolio Segment [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	14,554	13,769
Current	551,849	493,404
Loans receivable	566,403	507,173	423,480
Recorded loans > 90 days and accruing	383
Commercial Portfolio Segment [Member] | Commercial [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,763	278
Commercial Portfolio Segment [Member] | Commercial [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	12,791	13,491
Consumer Portfolio Segment [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	179	153
Current	19,374	21,276
Loans receivable	19,553	21,429	$ 20,185
Recorded loans > 90 days and accruing	1	3
Consumer Portfolio Segment [Member] | Other [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	121	65
Consumer Portfolio Segment [Member] | Other [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 58	$ 88