Loans And Allowance For Loan Losses (Age Analysis Of Past Due Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 27,401	$ 21,522
Current	1,754,483	1,757,907
Loans receivable	1,781,884	1,779,429	$ 1,438,245
Recorded loans > 90 days and accruing	106	500
30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,134	1,164
90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	22,267	20,358
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	878,822	938,462
One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	158,078	161,958
Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	180,656	150,407
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	20,506	21,429
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	543,822	507,173
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,246
Current	873,576
Loans receivable	878,822		759,676
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	1,416
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	3,830
Commercial Real Estate Portfolio Segment [Member] | Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		4,264
Current		934,198
Loans receivable		938,462
Recorded loans > 90 days and accruing		449
Commercial Real Estate Portfolio Segment [Member] | Real Estate Mortgage [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		272
Commercial Real Estate Portfolio Segment [Member] | Real Estate Mortgage [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		3,992
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,444	1,010
Current	155,010	128,060
Loans receivable	156,454	129,070
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	1,444	1,010
Residential Portfolio Segment [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	4,028
Current	154,050
Loans receivable	158,078		86,343
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	580
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	3,448
Residential Portfolio Segment [Member] | Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		2,326
Current		159,632
Loans receivable		161,958
Recorded loans > 90 days and accruing		48
Residential Portfolio Segment [Member] | Real Estate Mortgage [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		549
Residential Portfolio Segment [Member] | Real Estate Mortgage [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		1,777
Residential Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	24,202	21,337
Loans receivable	24,202	21,337
Real Estate Construction [Member] | Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	180,656		204,638
Commercial Portfolio Segment [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	16,475	13,769
Current	527,347	493,404
Loans receivable	543,822	507,173	366,282
Recorded loans > 90 days and accruing	100
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	3,014	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	13,461	13,491
Consumer Portfolio Segment [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	208	153
Current	20,298	21,276
Loans receivable	20,506	21,429	$ 21,306
Recorded loans > 90 days and accruing	6	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	124	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	$ 84	$ 88