Fair Value (Details 2) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Impaired loans
Total impaired loans	$ 5,200	$ 7,791
Mortgage servicing rights	874	1,034
Real estate held for sale
Total real estate held for sale	351	739
One To Four Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	278	419
Multi Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	102	269
Commercial Real Estate [Member]
Impaired loans
Total impaired loans	4,726	6,665
Real estate held for sale
Total real estate held for sale	285	739
Home Equity and Improvement [Member]
Impaired loans
Total impaired loans	94	98
Residential Mortgage [Member]
Real estate held for sale
Total real estate held for sale	66	0
Commercial Loan [Member]
Impaired loans
Total impaired loans	0	340
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	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] | Residential Mortgage [Member]
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 2 [Member]
Impaired loans
Total impaired loans	0	0
Mortgage servicing rights	874	1,034
Real estate held for sale
Total real estate held for sale	0	0
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] | Residential Mortgage [Member]
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 3 [Member]
Impaired loans
Total impaired loans	5,200	7,791
Mortgage servicing rights	0	0
Real estate held for sale
Total real estate held for sale	351	739
Fair Value, Inputs, Level 3 [Member] | One To Four Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	278	419
Fair Value, Inputs, Level 3 [Member] | Multi Family Residential Real Estate [Member]
Impaired loans
Total impaired loans	102	269
Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member]
Impaired loans
Total impaired loans	4,726	6,665
Real estate held for sale
Total real estate held for sale	285	739
Fair Value, Inputs, Level 3 [Member] | Home Equity and Improvement [Member]
Impaired loans
Total impaired loans	94	98
Fair Value, Inputs, Level 3 [Member] | Residential Mortgage [Member]
Real estate held for sale
Total real estate held for sale	66	0
Fair Value, Inputs, Level 3 [Member] | Commercial Loan [Member]
Impaired loans
Total impaired loans	$ 0	$ 340