Loans and Allowance for Loan Losses (Detail Textuals) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2018 USD ($) Loan	Sep. 30, 2018 USD ($) Loan	Dec. 31, 2017 USD ($) Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loan	$ 1,803	$ 1,803	$ 1,815
Number of loans default \| Loan	3	1	4
Loan modified as default		$ 19
Balance of capitalized servicing rights	$ 2,278	2,278	$ 2,260
Aggregate balances of loans serviced to third party		253,856	244,765
Home equity loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loan	117	$ 117
Number of loans default \| Loan		2
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loan	117	$ 117
Number of loans default \| Loan		2
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balances of loans held for sale	$ 286	$ 286	2,059
Amount of loan			1,661
Commercial loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loan			$ 19

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- Definition

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+ References

No definition available.

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- Definition

The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554

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Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

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- Definition

Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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