Loans and Allowance for Loan Losses (Schedule of Impaired Loans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Specific Allowance	$ 552	$ 816
Recorded Balance	3,883	3,442
Unpaid Principal Balance	4,207	3,442
Average Investment in Impaired Loans	4,038	6,478
Interest Income Recognized	172	103
One-to-four family residential loans [Member]
Loans without a specific valuation allowance, Recorded Balance	1,224	1,108
Loans without a specific valuation allowance, Unpaid Principal Balance	1,238	1,108
Loans without a specific valuation allowance, Average Investment in Impaired Loans	1,493	3,220
Loans without a specific valuation allowance, Interest Income Recognized	44	44
Loans with a specific valuation allowance, Recorded Balance	1,565	2,171
Loans with a specific valuation allowance, Unpaid Principal Balance	1,875	2,171
Specific Allowance	506	653
Loans with a specific valuation allowance, Average Investment in Impaired Loans	1,347	1,499
Loans with a specific valuation allowance, Interest Income Recognized	56	56
Recorded Balance	2,789	3,279
Unpaid Principal Balance	3,113	3,279
Average Investment in Impaired Loans	2,840	4,719
Interest Income Recognized	$ 100	$ 100
All other mortgage loans [Member]
Loans without a specific valuation allowance, Recorded Balance
Loans without a specific valuation allowance, Unpaid Principal Balance
Loans without a specific valuation allowance, Average Investment in Impaired Loans	$ 532	$ 1,097
Loans without a specific valuation allowance, Interest Income Recognized
Loans with a specific valuation allowance, Recorded Balance	$ 1,061	$ 18
Loans with a specific valuation allowance, Unpaid Principal Balance	1,061	18
Specific Allowance	13	18
Loans with a specific valuation allowance, Average Investment in Impaired Loans	575	477
Loans with a specific valuation allowance, Interest Income Recognized	71	1
Recorded Balance	1,061	18
Unpaid Principal Balance	1,061	18
Average Investment in Impaired Loans	1,107	1,574
Interest Income Recognized	$ 71	$ 1
Commercial business loans [Member]
Loans without a specific valuation allowance, Recorded Balance
Loans without a specific valuation allowance, Unpaid Principal Balance
Loans without a specific valuation allowance, Average Investment in Impaired Loans	$ 9	$ 19
Loans without a specific valuation allowance, Interest Income Recognized
Loans with a specific valuation allowance, Recorded Balance	$ 33	$ 145
Loans with a specific valuation allowance, Unpaid Principal Balance	33	145
Specific Allowance	33	145
Loans with a specific valuation allowance, Average Investment in Impaired Loans	82	166
Loans with a specific valuation allowance, Interest Income Recognized	1	2
Recorded Balance	33	145
Unpaid Principal Balance	33	145
Average Investment in Impaired Loans	91	185
Interest Income Recognized	$ 1	$ 2