Credit Quality of Loans and the Allowance for Loan Losses (Schedule of Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Specific Allowance	$ 378		$ 378		$ 816
Recorded Balance	3,947		3,947		3,442
Unpaid Principal Balance	3,947		3,947		3,442
Average Investment in Impaired Loans	4,075	$ 9,392	3,863	$ 9,664
Interest Income Recognized	44	108	87	216
One-to-four family residential loans [Member]
Financing Receivable, Impaired [Line Items]
Loans without a specific valuation allowance, Recorded Balance	1,475		1,475		1,108
Loans without a specific valuation allowance, Unpaid Principal Balance	1,475		1,475		1,108
Loans without a specific valuation allowance, Average Investment in Impaired Loans	1,794	5,247	1,565	5,354
Loans without a specific valuation allowance, Interest Income Recognized	13	41	25	105
Loans with a specific valuation allowance, Recorded Balance	1,134		1,134		2,171
Loans with a specific valuation allowance, Unpaid Principal Balance	1,134		1,134		2,171
Specific Allowance	146		146		653
Loans with a specific valuation allowance, Average Investment in Impaired Loans	1,010	826	1,397	831
Loans with a specific valuation allowance, Interest Income Recognized	12	18	25	27
Recorded Balance	2,609		2,609		3,279
Unpaid Principal Balance	2,609		2,609		$ 3,279
Average Investment in Impaired Loans	2,804	6,073	2,962	6,185
Interest Income Recognized	25	59	50	132
All other mortgage loans [Member]
Financing Receivable, Impaired [Line Items]
Loans without a specific valuation allowance, Recorded Balance	1,066		1,066
Loans without a specific valuation allowance, Unpaid Principal Balance	1,066		1,066
Loans without a specific valuation allowance, Average Investment in Impaired Loans	1,063	2,194	709	2,146
Loans without a specific valuation allowance, Interest Income Recognized	18	43	36	63
Loans with a specific valuation allowance, Recorded Balance	149		149		$ 18
Loans with a specific valuation allowance, Unpaid Principal Balance	149		149		18
Specific Allowance	109		109		18
Loans with a specific valuation allowance, Average Investment in Impaired Loans	$ 83	936	$ 61	1,160
Loans with a specific valuation allowance, Interest Income Recognized		4		18
Recorded Balance	$ 1,215		$ 1,215		18
Unpaid Principal Balance	1,215		1,215		$ 18
Average Investment in Impaired Loans	1,146	3,130	770	3,306
Interest Income Recognized	$ 18	47	$ 36	81
Commercial business loans [Member]
Financing Receivable, Impaired [Line Items]
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		$ 38		$ 51
Loans without a specific valuation allowance, Interest Income Recognized
Loans with a specific valuation allowance, Recorded Balance	$ 123		$ 123		$ 145
Loans with a specific valuation allowance, Unpaid Principal Balance	123		123		145
Specific Allowance	123		123		145
Loans with a specific valuation allowance, Average Investment in Impaired Loans	125	$ 151	131	$ 122
Loans with a specific valuation allowance, Interest Income Recognized	1	2	1	3
Recorded Balance	123		123		145
Unpaid Principal Balance	123		123		$ 145
Average Investment in Impaired Loans	125	189	131	173
Interest Income Recognized	$ 1	$ 2	$ 1	$ 3