Loans Receivable and Allowance for Loan Losses (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Rate adjustment
Less than 1 year	$ 43,609	$ 96,146
1 - 3 years	54,197	53,059
3 - 5 years	49,251	60,662
> 5 years	67,791	28,004
Total loans at adjustable rates	$ 214,848	$ 237,871