Loans Receivable and Allowance for Loan Losses (Allowance for Loan Losses and Recorded Investment in Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance,	$ 8,452	$ 7,634
Charge Offs	(598)	(99)
Recoveries	45	14
Provision for loan losses	450	550
Ending balance,	8,349	8,099
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	8,349	8,099
Residential Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance,	1,328	1,272
Charge Offs	(65)	(51)
Recoveries	11	1
Provision for loan losses	181	303
Ending balance,	1,455	1,525
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	1,455	1,525
Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance,	5,455	5,265
Charge Offs	(469)	0
Recoveries	10	6
Provision for loan losses	(49)	(142)
Ending balance,	4,947	5,129
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	4,947	5,129
Construction Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance,	93	90
Charge Offs	0	0
Recoveries	0	0
Provision for loan losses	15	30
Ending balance,	108	120
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	108	120
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance,	712	463
Charge Offs	(1)	0
Recoveries	10	0
Provision for loan losses	90	175
Ending balance,	811	638
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	811	638
Consumer Loans To Individuals [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance,	864	544
Charge Offs	(63)	(48)
Recoveries	14	7
Provision for loan losses	213	184
Ending balance,	1,028	687
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	$ 1,028	$ 687

A valuation allowance for financing receivables that are expected to be uncollectible.

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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.

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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