Fair Value - Assets And Liabilities Measured At Fair Value On A Non-Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Impaired loans:
Total impaired loans	$ 10,799	$ 11,792
Foreclosed assets
Foreclosed assets, net	1,464	1,525
Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans:
Total impaired loans	4,908	5,298
Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] | Single-family residential [Member]
Impaired loans:
Total impaired loans	84	57
Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] | Multi-family residential [Member]
Impaired loans:
Total impaired loans	1,972	2,070
Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] | Non-owner occupied [Member]
Impaired loans:
Total impaired loans	1,527	1,806
Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] | Owner occupied [Member]
Impaired loans:
Total impaired loans	1,204	1,244
Financial instruments measured at fair value on a non-recurring basis [Member] | Commercial Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans:
Total impaired loans	$ 121	$ 121