Fair Value (Details 1) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Impaired loans
Total impaired loans	$ 982	$ 5,146
Mortgage servicing rights	3,023	872
One To Four Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	8	398
Multi Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	0	91
Commercial Real Estate [Member]
Impaired loans
Total impaired loans	863	4,575
Real estate held for sale
Total real estate held for sale	377	280
Home Equity and Improvement [Member]
Impaired loans
Total impaired loans	0	82
Commercial Loan [Member]
Impaired loans
Total impaired loans	111	0
Fair Value, Inputs, Level 1 [Member]
Impaired loans
Total impaired loans	0	0
Mortgage servicing rights	0	0
Fair Value, Inputs, Level 1 [Member] | One To Four Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	0	0
Fair Value, Inputs, Level 1 [Member] | Multi Family Residential Real Estate [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 1 [Member] | Home Equity and Improvement [Member]
Impaired loans
Total impaired loans	0	0
Fair Value, Inputs, Level 1 [Member] | Commercial Loan [Member]
Impaired loans
Total impaired loans	0
Fair Value, Inputs, Level 2 [Member]
Impaired loans
Total impaired loans	0	0
Mortgage servicing rights	3,023	872
Fair Value, Inputs, Level 2 [Member] | One To Four Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	0	0
Fair Value, Inputs, Level 2 [Member] | Multi Family Residential Real Estate [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 2 [Member] | Home Equity and Improvement [Member]
Impaired loans
Total impaired loans	0	0
Fair Value, Inputs, Level 2 [Member] | Commercial Loan [Member]
Impaired loans
Total impaired loans	0
Fair Value, Inputs, Level 3 [Member]
Impaired loans
Total impaired loans	982	5,146
Mortgage servicing rights	0	0
Fair Value, Inputs, Level 3 [Member] | One To Four Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	8	398
Fair Value, Inputs, Level 3 [Member] | Multi Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	0	91
Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member]
Impaired loans
Total impaired loans	863	4,575
Real estate held for sale
Total real estate held for sale	377	280
Fair Value, Inputs, Level 3 [Member] | Home Equity and Improvement [Member]
Impaired loans
Total impaired loans	0	82
Fair Value, Inputs, Level 3 [Member] | Commercial Loan [Member]
Impaired loans
Total impaired loans	$ 111	$ 0