Loans Receivable (Details 6) (Purchased Other Loans [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Gross purchased other nonaccrual loans
Gross purchased other nonaccrual loans	$ 2,001	[1]	$ 800	[1]
Commercial business [Member]
Gross purchased other nonaccrual loans
Gross purchased other nonaccrual loans	1,991	[1]	576	[1]
Consumer [Member]
Gross purchased other nonaccrual loans
Gross purchased other nonaccrual loans	10	[1]	163	[1]
Commercial and industrial [Member] | Commercial business [Member]
Gross purchased other nonaccrual loans
Gross purchased other nonaccrual loans	978	[1]	0	[1]
Owner-occupied commercial real estate [Member] | Commercial business [Member]
Gross purchased other nonaccrual loans
Gross purchased other nonaccrual loans	130	[1]	139	[1]
Non-owner occupied commercial real estate [Member] | Commercial business [Member]
Gross purchased other nonaccrual loans
Gross purchased other nonaccrual loans	883	[1]	437	[1]
One-to-four family residential [Member]
Gross purchased other nonaccrual loans
Gross purchased other nonaccrual loans	$ 0	[1]	$ 61	[1]

[1] $7,000 and $39,000 of purchased other nonaccrual loans were covered by the FDIC shared-loss agreements at September 30, 2013 and December 31, 2012, respectively.