Credit Quality of Loans and the Allowance for Loan Losses (Schedule of Activity in Allowance for Loan Losses) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Activity in the allowance for loan losses by portfolio segment
Beginning balance	$ 2,349	$ 2,574	$ 2,769	$ 2,819
Provision charged to expense	481	79	714	87
Losses charged off	(205)	(123)	(859)	(383)
Recoveries	43	19	44	26
Ending balance	2,668	2,549	2,668	2,549
One-to-four family residential [Member]
Activity in the allowance for loan losses by portfolio segment
Beginning balance	910	889	1,533	1,017
Provision charged to expense	367	63	397	(72)
Losses charged off	(205)	$ (11)	(859)	(11)
Recoveries	43		44	7
Ending balance	1,115	$ 941	1,115	941
All other mortgage loans [Member]
Activity in the allowance for loan losses by portfolio segment
Beginning balance	1,055	1,393	885	1,526
Provision charged to expense	$ 109	$ (255)	$ 279	(128)
Losses charged off				(260)
Recoveries		$ 17		17
Ending balance	$ 1,164	1,155	$ 1,164	1,155
Commercial business loans [Member]
Activity in the allowance for loan losses by portfolio segment
Beginning balance	380	288	343	271
Provision charged to expense	$ (34)	271	$ 3	288
Losses charged off		(112)		(112)
Recoveries		2		2
Ending balance	$ 346	449	$ 346	449
Consumer loans [Member]
Activity in the allowance for loan losses by portfolio segment
Beginning balance	4	$ 4	8	5
Provision charged to expense	$ 1		$ (3)	$ (1)
Losses charged off
Recoveries
Ending balance	$ 5	$ 4	$ 5	$ 4
Unallocated [Member]
Activity in the allowance for loan losses by portfolio segment
Beginning balance
Provision charged to expense	$ 38		$ 38
Losses charged off
Recoveries
Ending balance	$ 38		$ 38

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(d))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

+ Details

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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No definition available.

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