Fair Value (Details 3) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Impaired loans
Total Impaired Loans	$ 1,258	$ 10,900
Mortgage servicing rights	7,752	8,700
Real estate held for sale
Total Real Estate held for sale	267	1,628
Residential Mortgage [Member]
Impaired loans
Total Impaired Loans	721	1,092
Real estate held for sale
Total Real Estate held for sale	0	28
Commercial Loan [Member]
Impaired loans
Total Impaired Loans	0	1,268
Multi Family Loans [Member]
Impaired loans
Total Impaired Loans	0	103
Commercial Real Estate [Member]
Impaired loans
Total Impaired Loans	537	8,449
Real estate held for sale
Total Real Estate held for sale	267	1,600
Fair Value, Inputs, Level 1 [Member]
Impaired loans
Total Impaired Loans	0	0
Mortgage servicing rights	0	0
Real estate held for sale
Total Real Estate held for sale	0
Fair Value, Inputs, Level 1 [Member] | Residential Mortgage [Member]
Impaired loans
Total Impaired Loans	0	0
Real estate held for sale
Total Real Estate held for sale	0	0
Fair Value, Inputs, Level 1 [Member] | Commercial Loan [Member]
Impaired loans
Total Impaired Loans	0	0
Fair Value, Inputs, Level 1 [Member] | Multi Family Loans [Member]
Impaired loans
Total Impaired Loans	0	0
Fair Value, Inputs, Level 1 [Member] | Commercial Real Estate [Member]
Impaired loans
Total Impaired Loans	0	0
Real estate held for sale
Total Real Estate held for sale	0	0
Fair Value, Inputs, Level 2 [Member]
Impaired loans
Total Impaired Loans	0	0
Mortgage servicing rights	7,752	8,690
Real estate held for sale
Total Real Estate held for sale	0
Fair Value, Inputs, Level 2 [Member] | Residential Mortgage [Member]
Impaired loans
Total Impaired Loans	0	0
Real estate held for sale
Total Real Estate held for sale	0	0
Fair Value, Inputs, Level 2 [Member] | Commercial Loan [Member]
Impaired loans
Total Impaired Loans	0	0
Fair Value, Inputs, Level 2 [Member] | Multi Family Loans [Member]
Impaired loans
Total Impaired Loans	0	0
Fair Value, Inputs, Level 2 [Member] | Commercial Real Estate [Member]
Impaired loans
Total Impaired Loans	0	0
Real estate held for sale
Total Real Estate held for sale	0	0
Fair Value, Inputs, Level 3 [Member]
Impaired loans
Total Impaired Loans	1,258	10,912
Mortgage servicing rights	0	0
Real estate held for sale
Total Real Estate held for sale	267	1,628
Fair Value, Inputs, Level 3 [Member] | Residential Mortgage [Member]
Impaired loans
Total Impaired Loans	721	1,092
Real estate held for sale
Total Real Estate held for sale	0	28
Fair Value, Inputs, Level 3 [Member] | Commercial Loan [Member]
Impaired loans
Total Impaired Loans	0	1,268
Fair Value, Inputs, Level 3 [Member] | Multi Family Loans [Member]
Impaired loans
Total Impaired Loans	0	103
Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member]
Impaired loans
Total Impaired Loans	537	8,449
Real estate held for sale
Total Real Estate held for sale	$ 267	$ 1,600