v3.8.0.1

Loans - Schedule of Detail of Loans Modified as Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Loan	Mar. 31, 2018 USD ($)
Financing Receivable Modifications [Line Items]
Number of loans | Loan	2
Outstanding recorded investment, pre-modification	$ 1,816
Outstanding recorded investment, post-modification	1,816
Troubled debt restructuring balance	$ 4,500	$ 4,400
Commercial Real Estate Loans
Financing Receivable Modifications [Line Items]
Number of loans | Loan	1
Outstanding recorded investment, pre-modification	$ 1,598
Outstanding recorded investment, post-modification	$ 1,598
Commercial Loans
Financing Receivable Modifications [Line Items]
Number of loans | Loan	1
Outstanding recorded investment, pre-modification	$ 218
Outstanding recorded investment, post-modification	$ 218

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- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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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Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524

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