Loans - Schedule of Change in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Beginning balance	$ 3,915	$ 4,080	$ 3,915	$ 2,295
(Credit) provision for loan losses
Charge-offs	(31)	(90)	(40)	(122)
Recoveries	11	250	20	2,067
Ending balance	3,895	4,240	3,895	4,240
Individually evaluated for impairment, Recorded investment	1,362		1,362		$ 1,379
Individually evaluated for impairment, Allowance for loan losses	77		77		104
Collectively evaluated for impairment, Recorded investment	71,467		71,467		79,072
Collectively evaluated for impairment, Allowance for loan losses	3,818		3,818		3,811
Residential Real Estate [Member]
Beginning balance	302	266	310	116
(Credit) provision for loan losses		(4)	(8)	146
Charge-offs
Recoveries
Ending balance	302	262	302	262
Individually evaluated for impairment, Recorded investment	371		371		375
Individually evaluated for impairment, Allowance for loan losses
Collectively evaluated for impairment, Recorded investment	26,430		26,430		26,959
Collectively evaluated for impairment, Allowance for loan losses	302		302		310
Multi-family Real Estate [Member]
Beginning balance	73	40	58	26
(Credit) provision for loan losses	(11)	(1)	4	13
Charge-offs
Recoveries
Ending balance	62	39	62	39
Individually evaluated for impairment, Recorded investment
Individually evaluated for impairment, Allowance for loan losses
Collectively evaluated for impairment, Recorded investment	6,173		6,173		5,829
Collectively evaluated for impairment, Allowance for loan losses	62		62		58
Commercial Real Estate [Member]
Beginning balance	818	1,175	787	1,085
(Credit) provision for loan losses	(49)	(404)	(18)	(2,122)
Charge-offs
Recoveries		241		2,049
Ending balance	769	1,012	769	1,012
Individually evaluated for impairment, Recorded investment	991		991		1,004
Individually evaluated for impairment, Allowance for loan losses	77		77		104
Collectively evaluated for impairment, Recorded investment	29,313		29,313		28,260
Collectively evaluated for impairment, Allowance for loan losses	692		692		683
Land and Construction [Member]
Beginning balance	65	81	120	77
(Credit) provision for loan losses	(10)	(23)	(71)	(25)
Charge-offs
Recoveries	6	6	12	12
Ending balance	61	64	61	64
Individually evaluated for impairment, Recorded investment
Individually evaluated for impairment, Allowance for loan losses
Collectively evaluated for impairment, Recorded investment	2,825		2,825		5,681
Collectively evaluated for impairment, Allowance for loan losses	61		61		120
Commercial [Member]
Beginning balance	126	210	188	120
(Credit) provision for loan losses	(59)	(10)	(121)	80
Charge-offs
Recoveries
Ending balance	67	200	67	200
Individually evaluated for impairment, Recorded investment
Individually evaluated for impairment, Allowance for loan losses
Collectively evaluated for impairment, Recorded investment	5,510		5,510		10,514
Collectively evaluated for impairment, Allowance for loan losses	67		67		188
Consumer [Member]
Beginning balance	152	151	165	151
(Credit) provision for loan losses	22	92	15	121
Charge-offs	(31)	(90)	(40)	(122)
Recoveries	5	3	8	6
Ending balance	148	156	148	156
Individually evaluated for impairment, Recorded investment
Individually evaluated for impairment, Allowance for loan losses
Collectively evaluated for impairment, Recorded investment	1,216		1,216		1,829
Collectively evaluated for impairment, Allowance for loan losses	148		148		165
Unallocated [Member]
Beginning balance	2,379	2,157	2,287	720
(Credit) provision for loan losses	107	350	199	1,787
Charge-offs
Recoveries
Ending balance	2,486	$ 2,507	2,486	$ 2,507
Individually evaluated for impairment, Recorded investment
Individually evaluated for impairment, Allowance for loan losses
Collectively evaluated for impairment, Recorded investment
Collectively evaluated for impairment, Allowance for loan losses	$ 2,486		$ 2,486		$ 2,287

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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

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

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The balance of financing receivables that were collectively evaluated for impairment.

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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=84173941&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
-Paragraph 11B
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-URI http://asc.fasb.org/extlink&oid=84173941&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
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-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.1)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707

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-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=82894903&loc=d3e15032-111544

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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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