Loans Receivable And Allowance For Credit Losses (Troubled Debt Restructurings On Financing Receivables That Subsequently Defaulted) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012 contract	Dec. 31, 2011 contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	8	2
Recorded Investment	$ 454	$ 477
One-To Four-Family Loans - Originated [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	6	1
Recorded Investment	405	76
One-To Four-Family Loans - Purchased [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	1
Recorded Investment	47	401
Consumer - Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Recorded Investment	$ 2