Fair Value (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Corporate notes and bonds [Member]
Quantitative information about Level 3 fair value measurements
Fair value	$ 1,985
Pooled trust preferred [Member]
Quantitative information about Level 3 fair value measurements
Fair value	$ 360
Constant prepayment rate [Member] | Corporate notes and bonds [Member]
Quantitative information about Level 3 fair value measurements
Input Utilized One	0.00%
Probability of default [Member] | Corporate notes and bonds [Member]
Quantitative information about Level 3 fair value measurements
Input Utilized One	0.00%
Discount rate [Member] | Corporate notes and bonds [Member]
Quantitative information about Level 3 fair value measurements
Input Utilized One	9.60%
Discount rate [Member] | Pooled trust preferred [Member]
Quantitative information about Level 3 fair value measurements
Input Utilized One	17.00%
Collateral default rate [Member] | Pooled trust preferred [Member]
Quantitative information about Level 3 fair value measurements
Input Utilized Two	2% annually for 2 years; 0.36% thereafter
Recovery probability [Member] | Pooled trust preferred [Member]
Quantitative information about Level 3 fair value measurements
Input Utilized Two	10%, lagged 2 years