Fair Value (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Inputs, Level 1 [Member]
Impaired loans with specific valuation allowances	$ 0	$ 0
Other real estate owned	0	0
MSRs	0
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 2 [Member]
Impaired loans with specific valuation allowances	0	0
Other real estate owned	0	0
MSRs	0
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 3 [Member]
Impaired loans with specific valuation allowances	34,383	39,346
Other real estate owned	6,552	21,270
MSRs	1,308
Assets, Fair Value Disclosure, Nonrecurring	$ 42,243	$ 60,706