Credit Quality of Loans and the Allowance for Loan Losses (Schedule of Loans Receivable by Credit Risk Profile) (Details) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross		$ 356,440	$ 340,789
One-to-four family residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross		192,093	193,424
One-to-four family residential [Member] | Pass (Risk 1-4) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	188,779	189,975
One-to-four family residential [Member] | Special Mention (Risk 5) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]
One-to-four family residential [Member] | Substandard (Risk 6) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	3,314	3,449
All other mortgage loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross		136,213	121,957
All other mortgage loans [Member] | Pass (Risk 1-4) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	131,592	119,503
All other mortgage loans [Member] | Special Mention (Risk 5) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	2,232
All other mortgage loans [Member] | Substandard (Risk 6) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	2,389	2,454
Commercial business loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross		25,986	23,215
Commercial business loans [Member] | Pass (Risk 1-4) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	25,311	22,427
Commercial business loans [Member] | Special Mention (Risk 5) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	32
Commercial business loans [Member] | Substandard (Risk 6) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	643	788
Consumer loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross		2,148	2,193
Consumer loans [Member] | Pass (Risk 1-4) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	2,142	2,193
Consumer loans [Member] | Special Mention (Risk 5) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]
Consumer loans [Member] | Substandard (Risk 6) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, gross	[1]	$ 6

[1] Ratings are generally assigned to consumer and residential mortgage loans on a "pass" or "fail" basis, where "fail" results in a substandard classification. Commercial loans, both secured by real estate or other assets or unsecured, are analyzed in accordance with an analytical matrix codified in the Bank's loan policy that produces a risk rating as described below.